$ git clone -n https://src.fedoraproject.org/rpms/kf6-kunitconversion.git /var/lib/mock/f40-build-787147-134734/root/chroot_tmpdir/scmroot/kf6-kunitconversion
Cloning into '/var/lib/mock/f40-build-787147-134734/root/chroot_tmpdir/scmroot/kf6-kunitconversion'...
$ git fetch origin c487712369ca12eba30155f270da1e6f6ad01d26:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kunitconversion
 * [new ref]         c487712369ca12eba30155f270da1e6f6ad01d26 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c487712 6.0.0