$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt5-qt3d.git /var/lib/mock/f45-build-18729-526/root/chroot_tmpdir/scmroot/mingw-qt5-qt3d
Cloning into '/var/lib/mock/f45-build-18729-526/root/chroot_tmpdir/scmroot/mingw-qt5-qt3d'...
$ git fetch origin fedb21c2d14571412231d1d67f599b3d50e32926:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt5-qt3d
 * [new ref]         fedb21c2d14571412231d1d67f599b3d50e32926 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fedb21c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild