poudriere fetch problem

I'm working on a port… that have no problem for fetching:

root@orange:/usr/ports/security/netmap-ipfw # make makesum
===>  License BSD accepted by the user
===>   netmap-ipfw-0.1 depends on file: /usr/local/sbin/pkg - found
=> 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch http://netmap-ipfw.googlecode.com/archive/1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip
fetch: http://netmap-ipfw.googlecode.com/archive/1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip: size of remote file is not known
1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip           288 kB  595 kBps 00m00s
===> Fetching all distfiles required by netmap-ipfw-0.1 for building
root@orange:/usr/ports/security/netmap-ipfw # cat distinfo
SHA256 (1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip) = dbae2fbf35a6da43db994c3b42469243ab7b1fee7a4d5b68d95d291af600417a
SIZE (1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip) = 295834

But when I want to "poudriere testport" it… I've got a problem:

poudriere testport -j 11amd64 -z server -o security/netmap-ipfw
(...)
=======================<phase: checksum       >============================
===>  License BSD accepted by the user
===>   netmap-ipfw-0.1 depends on file: /usr/local/sbin/pkg - found
===> Fetching all distfiles required by netmap-ipfw-0.1 for building
=> SHA256 Checksum mismatch for 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip.
===>  Refetch for 1 more times files: 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip
===>  License BSD accepted by the user
===>   netmap-ipfw-0.1 depends on file: /usr/local/sbin/pkg - found
=> 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip doesn't seem to exist in /distfiles/.
=> Attempting to fetch http://netmap-ipfw.googlecode.com/archive/1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip
fetch: http://netmap-ipfw.googlecode.com/archive/1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip: size unknown
fetch: http://netmap-ipfw.googlecode.com/archive/1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip: size of remote file is not known
1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip             0  B    0  Bps
===> Fetching all distfiles required by netmap-ipfw-0.1 for building
===>  License BSD accepted by the user
===>   netmap-ipfw-0.1 depends on file: /usr/local/sbin/pkg - found
===> Fetching all distfiles required by netmap-ipfw-0.1 for building
=> SHA256 Checksum mismatch for 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip.
===>  Giving up on fetching files: 1430cbad0d128aebb80bbd54be970afb8fbe1c74.zip
Make sure the Makefile and distinfo file (/usr/ports/security/netmap-ipfw/distinfo)
are up to date.  If you are absolutely sure you want to override this
check, type "make NO_CHECKSUM=yes [other args]".
*** Error code 1