$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-231390-81588/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-231390-81588/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 8762f3c34c95cf5925a45d43fa4d5ee1e05c11ad:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         8762f3c34c95cf5925a45d43fa4d5ee1e05c11ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8762f3c import firefox-140.6.0-1.tl3.ap.1