$ git clone -n https://gitee.com/src-anolis-os/firefox.git /var/lib/mock/dist-an7-updates-build-77949-40481/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-an7-updates-build-77949-40481/root/chroot_tmpdir/scmroot/firefox'...
$ git reset --hard origin/a7
HEAD is now at a7f7572 !20 modify firefox.spec Merge pull request !20 from a7