$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt5-qt3d.git /var/lib/mock/f42-build-3280148-41340/root/chroot_tmpdir/scmroot/mingw-qt5-qt3d
Cloning into '/var/lib/mock/f42-build-3280148-41340/root/chroot_tmpdir/scmroot/mingw-qt5-qt3d'...
$ git fetch origin 77723a1ab9575797dc78d9c41b976d34749b2425:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt5-qt3d
 * [new ref]         77723a1ab9575797dc78d9c41b976d34749b2425 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77723a1 Update to 5.15.16