$ git clone -n https://src.fedoraproject.org/rpms/mbox-importer.git /var/lib/mock/f42-build-3364240-45044/root/chroot_tmpdir/scmroot/mbox-importer
Cloning into '/var/lib/mock/f42-build-3364240-45044/root/chroot_tmpdir/scmroot/mbox-importer'...
$ git fetch origin ed621bfdfb42c96f63a2b2ca5d425ff5742aafc3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mbox-importer
 * [new ref]         ed621bfdfb42c96f63a2b2ca5d425ff5742aafc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed621bf 24.12.3