$ git clone -n https://src.fedoraproject.org/rpms/kbackup.git /var/lib/mock/f39-build-2063832-49192/root/chroot_tmpdir/scmroot/kbackup
Cloning into '/var/lib/mock/f39-build-2063832-49192/root/chroot_tmpdir/scmroot/kbackup'...
$ git fetch origin 293f9014883c0b7f30fd29720c3a16045a5f880a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kbackup
 * [new ref]         293f9014883c0b7f30fd29720c3a16045a5f880a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 293f901 23.08.4