$ git clone -n https://gitee.com/src-opencloudos-rpms/thunderbird.git /var/lib/mock/dist-oc8-firefox-build-123995-73592/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-oc8-firefox-build-123995-73592/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin ae2a3f7b2404c268e39c6055ddae1c4216ae515b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/thunderbird
 * [new ref]         ae2a3f7b2404c268e39c6055ddae1c4216ae515b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae2a3f7 import thunderbird-128.7.0-1.tl3.ap.1