$ git clone -n https://gitee.com/src-opencloudos-rpms/thunderbird.git /var/lib/mock/dist-oc8-firefox-build-136859-79308/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/dist-oc8-firefox-build-136859-79308/root/chroot_tmpdir/scmroot/thunderbird'...
$ git fetch origin a313f28ae613f2bf081cbd680cb93b2157d4f4b7:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/thunderbird
 * [new ref]         a313f28ae613f2bf081cbd680cb93b2157d4f4b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a313f28 import thunderbird-128.9.0-2.tl3.ap.1