$ git clone -n https://src.fedoraproject.org/rpms/kblocks.git /var/lib/mock/f42-build-863942-172034/root/chroot_tmpdir/scmroot/kblocks
Cloning into '/var/lib/mock/f42-build-863942-172034/root/chroot_tmpdir/scmroot/kblocks'...
$ git fetch origin ae7fe625b1f4e0d535bbf56d78326daf22b4f201:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kblocks
 * [new ref]         ae7fe625b1f4e0d535bbf56d78326daf22b4f201 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae7fe62 24.12.0