$ git clone -n https://gitee.com/src-anolis-os/thunderbird.git /var/lib/mock/dist-an7-updates-build-64023-36059/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-an7-updates-build-64023-36059/root/chroot_tmpdir/scmroot/thunderbird'...
$ git reset --hard origin/a7
HEAD is now at 0379240 !9 update version to errata Merge pull request !9 from xzyang/a7