$ git clone -n https://src.fedoraproject.org/rpms/libabigail.git /var/lib/mock/f40-build-1932731-25125/root/chroot_tmpdir/scmroot/libabigail
Cloning into '/var/lib/mock/f40-build-1932731-25125/root/chroot_tmpdir/scmroot/libabigail'...
$ git fetch origin 03c6d7cf5aad5387cf729f2bc5128f5f007f417a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libabigail
 * [new ref]         03c6d7cf5aad5387cf729f2bc5128f5f007f417a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03c6d7c CI: drop 'directory' from discover config