$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt6-qt3d.git /var/lib/mock/f39-build-1793047-41752/root/chroot_tmpdir/scmroot/mingw-qt6-qt3d
Cloning into '/var/lib/mock/f39-build-1793047-41752/root/chroot_tmpdir/scmroot/mingw-qt6-qt3d'...
$ git fetch origin 3a6516505d16134a3121abe0cfd98604f97b065e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt6-qt3d
 * [new ref]         3a6516505d16134a3121abe0cfd98604f97b065e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3a65165 Globally add -msse2