$ git clone -n https://src.fedoraproject.org/rpms/qt6-qt3d.git /var/lib/mock/f41-build-861327-169705/root/chroot_tmpdir/scmroot/qt6-qt3d
Cloning into '/var/lib/mock/f41-build-861327-169705/root/chroot_tmpdir/scmroot/qt6-qt3d'...
$ git fetch origin 1d64fdd109dd274e0c719216d5bc921f3e3f877d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qt3d
 * [new ref]         1d64fdd109dd274e0c719216d5bc921f3e3f877d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d64fdd 6.8.0