$ git clone -n https://src.fedoraproject.org/rpms/kf6-kconfigwidgets.git /var/lib/mock/f42-build-side-1-3511690-46059/root/chroot_tmpdir/scmroot/kf6-kconfigwidgets
Cloning into '/var/lib/mock/f42-build-side-1-3511690-46059/root/chroot_tmpdir/scmroot/kf6-kconfigwidgets'...
$ git fetch origin 0c35e23d00283f59fe233edb59970e22aedf22c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kconfigwidgets
 * [new ref]         0c35e23d00283f59fe233edb59970e22aedf22c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c35e23 Rebuild (qt6)