$ git clone -n https://src.fedoraproject.org/rpms/qt5-qt3d.git /var/lib/mock/f45-build-33997-676/root/chroot_tmpdir/scmroot/qt5-qt3d
Cloning into '/var/lib/mock/f45-build-33997-676/root/chroot_tmpdir/scmroot/qt5-qt3d'...
$ git fetch origin 7385c619145141e5b1cbdd24267388c99e4effde:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qt3d
 * [new ref]         7385c619145141e5b1cbdd24267388c99e4effde -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7385c61 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild