$ git clone -n https://src.fedoraproject.org/rpms/kbackup.git /var/lib/mock/f42-build-863519-171710/root/chroot_tmpdir/scmroot/kbackup
Cloning into '/var/lib/mock/f42-build-863519-171710/root/chroot_tmpdir/scmroot/kbackup'...
$ git fetch origin 2ce6e6532659178837f3aafdb3bbc3226b6a8540:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kbackup
 * [new ref]         2ce6e6532659178837f3aafdb3bbc3226b6a8540 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ce6e65 24.12.0