$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt5-qtmultimedia.git /var/lib/mock/f42-build-3352087-45014/root/chroot_tmpdir/scmroot/mingw-qt5-qtmultimedia
Cloning into '/var/lib/mock/f42-build-3352087-45014/root/chroot_tmpdir/scmroot/mingw-qt5-qtmultimedia'...
$ git fetch origin 0fffb01161920b7d850f5cc167b331a0254d908d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt5-qtmultimedia
 * [new ref]         0fffb01161920b7d850f5cc167b331a0254d908d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0fffb01 Update to 5.15.16