$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-72381-47276/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-72381-47276/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 306b16d021cf36cb67d7bd9f9661b96edd763224:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         306b16d021cf36cb67d7bd9f9661b96edd763224 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 306b16d Add auto-patch changlog