$ git clone -n https://gitee.com/lzq11122/arm-trusted-firmware.git /var/lib/mock/dist-an23-build-451178-73471/root/chroot_tmpdir/scmroot/arm-trusted-firmware
Cloning into '/var/lib/mock/dist-an23-build-451178-73471/root/chroot_tmpdir/scmroot/arm-trusted-firmware'...
$ git fetch origin c12b2574a9a71e6d8793a7dd86ef98944dad5768:KOJI_FETCH_HEAD
From https://gitee.com/lzq11122/arm-trusted-firmware
 * [new ref]         c12b2574a9a71e6d8793a7dd86ef98944dad5768 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c12b257 .