$ git clone -n https://gitee.com/src-opencloudos-rpms/firefox.git /var/lib/mock/dist-oc9-build-230194-81439/root/chroot_tmpdir/scmroot/firefox
Cloning into '/var/lib/mock/dist-oc9-build-230194-81439/root/chroot_tmpdir/scmroot/firefox'...
$ git fetch origin a0f0f0415fca33cbd9059a8edda014579f40c65b:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/firefox
 * [new ref]         a0f0f0415fca33cbd9059a8edda014579f40c65b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0f0f04 import firefox-140.5.0-1.tl4.ap.1