$ git clone -n https://src.fedoraproject.org/rpms/libghemical.git /var/lib/mock/f40-build-2210903-52190/root/chroot_tmpdir/scmroot/libghemical
Cloning into '/var/lib/mock/f40-build-2210903-52190/root/chroot_tmpdir/scmroot/libghemical'...
$ git fetch origin b0e5de7bb9be9935a8cf24ae20b9292abbbd01be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libghemical
 * [new ref]         b0e5de7bb9be9935a8cf24ae20b9292abbbd01be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b0e5de7 SPDX migration