$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtdatavis3d.git /var/lib/mock/f40-build-786431-134291/root/chroot_tmpdir/scmroot/qt6-qtdatavis3d
Cloning into '/var/lib/mock/f40-build-786431-134291/root/chroot_tmpdir/scmroot/qt6-qtdatavis3d'...
$ git fetch origin aba3be1cbe6b69bb9636d78886ab48029dff7dd4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtdatavis3d
 * [new ref]         aba3be1cbe6b69bb9636d78886ab48029dff7dd4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aba3be1 6.6.2