$ git clone -n https://gitee.com/src-opencloudos-rpms/thunderbird.git /var/lib/mock/dist-oc8-firefox-build-81911-56634/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-oc8-firefox-build-81911-56634/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin 4080a2a0d58d0206ef6276f7e2206a6f7c8cad7f:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/thunderbird
 * [new ref]         4080a2a0d58d0206ef6276f7e2206a6f7c8cad7f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4080a2a Add auto-patch changlog