$ git clone -n https://src.fedoraproject.org/rpms/kf6-kjobwidgets.git /var/lib/mock/f42-build-side-1-3573583-46768/root/chroot_tmpdir/scmroot/kf6-kjobwidgets
Cloning into '/var/lib/mock/f42-build-side-1-3573583-46768/root/chroot_tmpdir/scmroot/kf6-kjobwidgets'...
$ git fetch origin d55c5f63936e27be77723978e1ef73d7092a7c73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kjobwidgets
 * [new ref]         d55c5f63936e27be77723978e1ef73d7092a7c73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d55c5f6 6.15 and plasma 3.4 compatibility rebuild