>>> Emerging (1 of 1) net-wireless/reaver-wps-fork-t6x-1.5.2_p20161210-r2::pentoo
>>> Unpacking source...
 * Fetching https://github.com/t6x/reaver-wps-fork-t6x.git ...
git fetch https://github.com/t6x/reaver-wps-fork-t6x.git +HEAD:refs/git-r3/HEAD
remote: Counting objects: 5, done.
remote: Total 5 (delta 2), reused 3 (delta 2), pack-reused 2
Unpacking objects: 100% (5/5), done.
From https://github.com/t6x/reaver-wps-fork-t6x
   88264ee..638fbdf             -> refs/git-r3/HEAD
git update-ref --no-deref refs/git-r3/net-wireless/reaver-wps-fork-t6x/0/__main__ c94ce484c4f6d9fb3bd3657cc6dc07eabb927dcd
fatal: update_ref failed for ref 'refs/git-r3/net-wireless/reaver-wps-fork-t6x/0/__main__': cannot update ref 'refs/git-r3/net-wireless/reaver-wps-fork-t6x/0/__main__': trying to write ref 'refs/git-r3/net-wireless/reaver-wps-fork-t6x/0/__main__' with nonexistent object c94ce484c4f6d9fb3bd3657cc6dc07eabb927dcd
 * ERROR: net-wireless/reaver-wps-fork-t6x-1.5.2_p20161210-r2::pentoo failed (unpack phase):
 *   Referencing c94ce484c4f6d9fb3bd3657cc6dc07eabb927dcd failed (wrong ref?).
 *
 * Call stack:
 *     ebuild.sh, line  115:  Called src_unpack
 *   environment, line 3316:  Called git-r3_src_unpack
 *   environment, line 2592:  Called git-r3_src_fetch
 *   environment, line 2586:  Called git-r3_fetch
 *   environment, line 2499:  Called die
 * The specific snippet of code:
 *                   die "Referencing ${remote_ref} failed (wrong ref?).";