$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtmultimedia.git /var/lib/mock/f45-build-34039-676/root/chroot_tmpdir/scmroot/qt5-qtmultimedia
Cloning into '/var/lib/mock/f45-build-34039-676/root/chroot_tmpdir/scmroot/qt5-qtmultimedia'...
$ git fetch origin eb8464961190d1aad16cf26ff870b40904cbbe25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtmultimedia
 * [new ref]         eb8464961190d1aad16cf26ff870b40904cbbe25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb84649 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild