$ git clone -n https://src.fedoraproject.org/rpms/babl.git /var/lib/mock/f40-build-2110382-50653/root/chroot_tmpdir/scmroot/babl
Cloning into '/var/lib/mock/f40-build-2110382-50653/root/chroot_tmpdir/scmroot/babl'...
$ git fetch origin 877bb4f5243f2c738e5039ee4a0736a3f0945d37:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/babl
 * [new ref]         877bb4f5243f2c738e5039ee4a0736a3f0945d37 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 877bb4f Update to 0.1.106