repo init -u https://<ip>:8443/aosp/platform/manifest -b mybranch
repo sync
...
Fetching projects: 100% (407/407)  Fetching project platform/tools/external/gradle
Fetching projects: 100% (407/407), done.
error: revision refs/tags/mybranch in platform/abi/cpp not found

$ cat .repo/projects/abi/cpp.git/packed-refs
# pack-refs with: peeled
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/ics-factoryrom-2-release
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/ics-mr0
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/ics-mr0-release
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/ics-mr1
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/ics-mr1-release
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/ics-plus-aosp
a0f99286d0909f7a30b0bee742bec2a0b62c4dd0 refs/remotes/aosp/idea133
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-dev
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr0-release
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr1-dev
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr1-dev-plus-aosp
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr1-release
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr1.1-dev
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr1.1-dev-plus-aosp
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr1.1-release
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr2-dev
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr2-release
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr2.0-release
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-mr2.0.0-release
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/jb-release
18f1b5e28734183ff8073fe86dc46bc4ebba8a59 refs/remotes/aosp/kitkat-cts-dev
18f1b5e28734183ff8073fe86dc46bc4ebba8a59 refs/remotes/aosp/kitkat-dev
18f1b5e28734183ff8073fe86dc46bc4ebba8a59 refs/remotes/aosp/kitkat-mr1-release
18f1b5e28734183ff8073fe86dc46bc4ebba8a59 refs/remotes/aosp/kitkat-release
a0f99286d0909f7a30b0bee742bec2a0b62c4dd0 refs/remotes/aosp/master
6426040f1be4a844082c9769171ce7f5341a5528 refs/remotes/aosp/tools_r20
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/tools_r21
eb789ea833d8d800662b67914d9c1785a58c2caa refs/remotes/aosp/tools_r22
18f1b5e28734183ff8073fe86dc46bc4ebba8a59 refs/remotes/aosp/tools_r22.2
755b7feb3226223f6b77377a5e748e1ac47cfbd4 refs/tags/android-4.0.1_r1
^6426040f1be4a844082c9769171ce7f5341a5528
6e21cf94291ff0ff67ead081e907b21c46b74075 refs/tags/android-4.0.1_r1.1
^6426040f1be4a844082c9769171ce7f5341a5528
9bf3f8b31fc175df486596ae123d4416321cc8c4 refs/tags/android-4.0.1_r1.2
^6426040f1be4a844082c9769171ce7f5341a5528
a4f468880c7d2058fed25e19a90ad288c6d22925 refs/tags/android-4.0.2_r1
^6426040f1be4a844082c9769171ce7f5341a5528
1f7abe1dd3a3d37f7c852aa877c576f3cdb4a042 refs/tags/android-4.0.3_r1
^6426040f1be4a844082c9769171ce7f5341a5528
1613612046aeadcad431fbea9e056685904f93a1 refs/tags/android-4.0.3_r1.1
^6426040f1be4a844082c9769171ce7f5341a5528
437e3997ed5275a19b7e2cf3b130c765c791c9b9 refs/tags/android-4.0.4_r1
^6426040f1be4a844082c9769171ce7f5341a5528
0a03a7b231c2ae0529e22c8c7604d44f7e3f3e68 refs/tags/android-4.0.4_r1.1
^6426040f1be4a844082c9769171ce7f5341a5528
711142b99de01e9129dec2cc7325315e54996d10 refs/tags/android-4.0.4_r1.2
^6426040f1be4a844082c9769171ce7f5341a5528
00d1d44867ab708d09f7259b29ddfe8ab57008d7 refs/tags/android-4.0.4_r2
^6426040f1be4a844082c9769171ce7f5341a5528
dd924f92906085b831bf1cbbc7484d3c043d613c refs/tags/android-4.0.4_r2.1
^6426040f1be4a844082c9769171ce7f5341a5528
e98b9655ab62adbdc22f7acbe083dbec8ee32c29 refs/tags/android-4.1.1_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
54d67e380f48d003d8922c17908adc192b375d02 refs/tags/android-4.1.1_r1.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
e519a423ee05d3f3c66e530264626504d66cb7d4 refs/tags/android-4.1.1_r2
^eb789ea833d8d800662b67914d9c1785a58c2caa
a0ea794ba309c907492e3a4f8da80f604bc6e1ce refs/tags/android-4.1.1_r3
^eb789ea833d8d800662b67914d9c1785a58c2caa
e9832499ad6834be10fd651b80871630ca7206c6 refs/tags/android-4.1.1_r4
^eb789ea833d8d800662b67914d9c1785a58c2caa
5126058ceb3473f4dc52db7faa472b37f9d3006a refs/tags/android-4.1.1_r5
^eb789ea833d8d800662b67914d9c1785a58c2caa
e434f0971082890ae11b428985a87b507c4733b2 refs/tags/android-4.1.1_r6
^eb789ea833d8d800662b67914d9c1785a58c2caa
021a599e4d6772f2d06ea91329c4c672a29e926f refs/tags/android-4.1.1_r6.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
e2686eaabd79e88e9b50e33985fef9243178969a refs/tags/android-4.1.2_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
d2e9dd2912aa58d46a6ba308d737c9c4231268cf refs/tags/android-4.1.2_r2
^eb789ea833d8d800662b67914d9c1785a58c2caa
28cdac299a0ac7608d9572da18bfbb23bbd828a5 refs/tags/android-4.1.2_r2.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
3ccb5c76034908d93b2c4ff5bd287b47da5d3fde refs/tags/android-4.2.1_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
5325b74ea5d3f9dc3098166f562e31b47f4db583 refs/tags/android-4.2.1_r1.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
333347e3777be1f4f1fcb22cabab39096f749a1d refs/tags/android-4.2.1_r1.2
^eb789ea833d8d800662b67914d9c1785a58c2caa
bd2d468279ab91c6974fa6b92db353268938b569 refs/tags/android-4.2.2_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
b4c3f63da3383f96cb9cb93e161f45f6ea03950f refs/tags/android-4.2.2_r1.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
a2f5b3812bb99ebb203e5702e0a022cc4b762044 refs/tags/android-4.2.2_r1.2
^eb789ea833d8d800662b67914d9c1785a58c2caa
d38f85bcc1fdfdcf10d67a769e4725f1af336ed8 refs/tags/android-4.2_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
b0f2a2a1effbcc07dfbe425f9af1eb9d8ea072d8 refs/tags/android-4.3.1_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
8c1e6d8051c49bd88ef8a9a91dc3a51be6528731 refs/tags/android-4.3_r0.9
^eb789ea833d8d800662b67914d9c1785a58c2caa
6e2a7ac470b4fbe216360451ec15b76cbc15c79d refs/tags/android-4.3_r0.9.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
9afa0f22f35eaa0dcf56f42d13ce471e92c4a99e refs/tags/android-4.3_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
fa35fe24cc56ff9cecbe6811d8ce39a22ded38ba refs/tags/android-4.3_r1.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
0ced4bce2dd78a0e929e12d6f87dc792dedb4ec3 refs/tags/android-4.3_r2
^eb789ea833d8d800662b67914d9c1785a58c2caa
fa873799be5cf200f1d1d32a63953949c9dcdda8 refs/tags/android-4.3_r2.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
0b011ca80688da477002d290c2afa5b6932b2ddb refs/tags/android-4.3_r2.2
^eb789ea833d8d800662b67914d9c1785a58c2caa
abfcfd2d65ca1b1ea5a6d4931073611bb03f52d6 refs/tags/android-4.3_r2.3
^eb789ea833d8d800662b67914d9c1785a58c2caa
3bdb2e137d18d029c38f76bfb152812c8d6ec6f9 refs/tags/android-4.3_r3
^eb789ea833d8d800662b67914d9c1785a58c2caa
ee413ea24ffb5a17f48a3412aca2bf5ca83fe989 refs/tags/android-4.3_r3.1
^eb789ea833d8d800662b67914d9c1785a58c2caa
57dbbbe94ca09552d0a08a6c49e9ffe801a24027 refs/tags/android-4.4.1_r1
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
77d97588f8ca4ea280d4e6b6225fc72853078778 refs/tags/android-4.4.2_r1
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
26c5eb5ed21bbb40a5b6db605f6f91ba04a26316 refs/tags/android-4.4_r0.7
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
603c4f204281f5d7345a6f8e7ae65e8f4c0328ca refs/tags/android-4.4_r0.8
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
554f8b654fc0f9c37b36c74eace9bffed5a0e9d4 refs/tags/android-4.4_r0.9
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
749a855ba1bcf8da0ed8363d5a748ef01491a070 refs/tags/android-4.4_r1
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
ce8b8f19af1e8ae6c219bf47acc4cf837af4f8ec refs/tags/android-4.4_r1.1
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
b29b7e22bb8b6a905bde1059eda5e066078fbe93 refs/tags/android-4.4_r1.2
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
ea461d03727143eb07764870765948a0eca9c0a8 refs/tags/android-cts-4.0.3_r1
^6426040f1be4a844082c9769171ce7f5341a5528
c9afdbb55d6ea53b805341ea2dcbffac816483f3 refs/tags/android-cts-4.0.3_r2
^6426040f1be4a844082c9769171ce7f5341a5528
b97e7e49feba85359a8770d731cf4817b31ff1ad refs/tags/android-cts-4.0_r1
^6426040f1be4a844082c9769171ce7f5341a5528
c0b2728039b34d126df590ecdaf57ee588fa11b2 refs/tags/android-cts-4.1_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
78a97d141cce5af49946be9138d344286c95f8c0 refs/tags/android-cts-4.1_r2
^eb789ea833d8d800662b67914d9c1785a58c2caa
22aafa4c11f8b00df7d47971a32c63ec2e6fe759 refs/tags/android-cts-4.2_r1
^eb789ea833d8d800662b67914d9c1785a58c2caa
f130948367cacca6ba88d3c6abb0252161ab36cc refs/tags/android-cts-4.2_r2
^eb789ea833d8d800662b67914d9c1785a58c2caa
a0b3b155ca232cb7e12cb280348eea3ad719eb9a refs/tags/android-cts-4.4_r1
^18f1b5e28734183ff8073fe86dc46bc4ebba8a59
6bee6a867b7ede626161d81419166b5e6a0c1239 refs/tags/android-cts-verifier-4.0.3_r1
^6426040f1be4a844082c9769171ce7f5341a5528
4d171d013d1230af6b2ec7d35b63b2abc05c46df refs/tags/android-cts-verifier-4.0_r1
^6426040f1be4a844082c9769171ce7f5341a5528
5ddf451125b935e18a6ef60c753a483293790091 refs/tags/android-sdk-4.0.3-tools_r1
^6426040f1be4a844082c9769171ce7f5341a5528
460f661655dc22d49a03ab841c60dc7740041740 refs/tags/android-sdk-4.0.3_r1
^6426040f1be4a844082c9769171ce7f5341a5528
6c842d709146619646cb4e38e0f6d6ad8b7d7601 refs/tags/android-sdk-adt_r16.0.1
^6426040f1be4a844082c9769171ce7f5341a5528
117d9f9e9275b88650f0465776b859d982f591f2 refs/tags/android-sdk-adt_r20
^6426040f1be4a844082c9769171ce7f5341a5528
849115b329c51e9058de53633b47df5b71d9edbf refs/tags/android-sdk-support_r11
^eb789ea833d8d800662b67914d9c1785a58c2caa