$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt6-qt3d.git /var/lib/mock/f40-build-2238428-53568/root/chroot_tmpdir/scmroot/mingw-qt6-qt3d
Cloning into '/var/lib/mock/f40-build-2238428-53568/root/chroot_tmpdir/scmroot/mingw-qt6-qt3d'...
$ git fetch origin ae9641d4e144e47ae63152e41ad6a48b16f6dcb3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt6-qt3d
 * [new ref]         ae9641d4e144e47ae63152e41ad6a48b16f6dcb3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae9641d Update to 6.6.1