$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-175061-79864/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-175061-79864/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 12b021788f46322cbc2d4da1ed4d5dd796363e87:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         12b021788f46322cbc2d4da1ed4d5dd796363e87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12b0217 import firefox-128.12.0-1.tl3.ap.1