$ git clone -n https://src.fedoraproject.org/rpms/alligator.git /var/lib/mock/f40-build-2361789-60360/root/chroot_tmpdir/scmroot/alligator
Cloning into '/var/lib/mock/f40-build-2361789-60360/root/chroot_tmpdir/scmroot/alligator'...
$ git fetch origin 3620a3e5cd9c988a4e2919f906e1e3e5a5602e0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/alligator
 * [new ref]         3620a3e5cd9c988a4e2919f906e1e3e5a5602e0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3620a3e 24.01.95