$ git clone -n https://src.fedoraproject.org/rpms/alligator.git /var/lib/mock/f42-build-side-1-3562187-46722/root/chroot_tmpdir/scmroot/alligator
Cloning into '/var/lib/mock/f42-build-side-1-3562187-46722/root/chroot_tmpdir/scmroot/alligator'...
$ git fetch origin db0a3428c6f7ca8810e2faa4f96bff0792c6989f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/alligator
 * [new ref]         db0a3428c6f7ca8810e2faa4f96bff0792c6989f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db0a342 25.04.2