$ git clone -n https://src.fedoraproject.org/rpms/babl.git /var/lib/mock/f40-build-1133883-20285/root/chroot_tmpdir/scmroot/babl
Cloning into '/var/lib/mock/f40-build-1133883-20285/root/chroot_tmpdir/scmroot/babl'...
$ git fetch origin 8874c0917640fe3462ddc06b5c3bf482b5b94c0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/babl
 * [new ref]         8874c0917640fe3462ddc06b5c3bf482b5b94c0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8874c09 Update to 0.1.108