$ git clone -n https://src.fedoraproject.org/rpms/deepin-system-monitor.git /var/lib/mock/f41-build-856371-167576/root/chroot_tmpdir/scmroot/deepin-system-monitor
Cloning into '/var/lib/mock/f41-build-856371-167576/root/chroot_tmpdir/scmroot/deepin-system-monitor'...
$ git fetch origin be412e5c2a91cca01e0608a14e5af9c8f9ffea87:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-system-monitor
 * [new ref]         be412e5c2a91cca01e0608a14e5af9c8f9ffea87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be412e5 fix build