$ git clone -n https://src.fedoraproject.org/rpms/deepin-qt5platform-plugins.git /var/lib/mock/f40-build-2686575-68066/root/chroot_tmpdir/scmroot/deepin-qt5platform-plugins
Cloning into '/var/lib/mock/f40-build-2686575-68066/root/chroot_tmpdir/scmroot/deepin-qt5platform-plugins'...
$ git fetch origin af90bf68cfebf3c56686616af740a35079eaf583:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-qt5platform-plugins
 * [new ref]         af90bf68cfebf3c56686616af740a35079eaf583 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af90bf6 Rebuild (qt5)