$ git clone -n https://gitee.com/src-anolis-os/firefox.git /var/lib/mock/dist-an7-updates-build-72101-37618/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-an7-updates-build-72101-37618/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard origin/a7
HEAD is now at f630c73 !12 update to errata Merge pull request !12 from a7