$ git clone -n https://src.fedoraproject.org/rpms/deepin-system-monitor.git /var/lib/mock/f41-build-828096-155549/root/chroot_tmpdir/scmroot/deepin-system-monitor
Cloning into '/var/lib/mock/f41-build-828096-155549/root/chroot_tmpdir/scmroot/deepin-system-monitor'...
$ git fetch origin 7487af66830e51129cdc225928d110d1902ed9ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-system-monitor
 * [new ref]         7487af66830e51129cdc225928d110d1902ed9ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7487af6 6.0.20