$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-66570-17041/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-66570-17041/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 38d8b7892402ca556b91ce1d0561c7dfe57decdf:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         38d8b7892402ca556b91ce1d0561c7dfe57decdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38d8b78 import firefox-115.6.0-1.tl3.1