$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc8-firefox-build-80967-54354/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc8-firefox-build-80967-54354/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin 94ddfbd6f2d718de3b4814541964fa2a0197e40e:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         94ddfbd6f2d718de3b4814541964fa2a0197e40e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 94ddfbd Add auto-patch changlog