$ git clone -n https://src.fedoraproject.org/rpms/kblocks.git /var/lib/mock/f41-build-860443-168945/root/chroot_tmpdir/scmroot/kblocks
Cloning into '/var/lib/mock/f41-build-860443-168945/root/chroot_tmpdir/scmroot/kblocks'...
$ git fetch origin aba2a786e992c982ef6c3d295af7800ca0d7e957:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kblocks
 * [new ref]         aba2a786e992c982ef6c3d295af7800ca0d7e957 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aba2a78 24.08.2