$ git clone -n https://gitee.com/wanghuan158/qemu.git /var/lib/mock/dist-an23-build-545355-87016/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-545355-87016/root/chroot_tmpdir/scmroot/qemu'...
$ git reset --hard 15c50e74f01b00356e550676d960208b1b1cde5e
HEAD is now at 15c50e7 Sync upstream changes