$ git clone -n https://src.fedoraproject.org/forks/mkolar/rpms/libabigail.git /var/lib/mock/f43-build-59116883-6571206/root/chroot_tmpdir/scmroot/libabigail
Cloning into '/var/lib/mock/f43-build-59116883-6571206/root/chroot_tmpdir/scmroot/libabigail'...
$ git fetch origin 8a77f087752c6b3b7a71ab9978c68d7b15ee3487:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/mkolar/rpms/libabigail
 * [new ref]         8a77f087752c6b3b7a71ab9978c68d7b15ee3487 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a77f08 update tests/libabigail-testsuite testcase