$ git clone -n https://src.fedoraproject.org/rpms/kf6-kparts.git /var/lib/mock/f40-build-788157-135049/root/chroot_tmpdir/scmroot/kf6-kparts
Cloning into '/var/lib/mock/f40-build-788157-135049/root/chroot_tmpdir/scmroot/kf6-kparts'...
$ git fetch origin 1b423caa22f1fe0cc9e0b5c5de70f3d76b6ce607:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kparts
 * [new ref]         1b423caa22f1fe0cc9e0b5c5de70f3d76b6ce607 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b423ca 6.0.0