$ git clone -n https://gitee.com/lzq11122/arm-trusted-firmware.git /var/lib/mock/dist-an23-build-451097-73471/root/chroot_tmpdir/scmroot/arm-trusted-firmware
Cloning into '/var/lib/mock/dist-an23-build-451097-73471/root/chroot_tmpdir/scmroot/arm-trusted-firmware'...
$ git fetch origin 54783a2a93e98717ca2e0ae4c9a4e4b99a931638:KOJI_FETCH_HEAD
From https://gitee.com/lzq11122/arm-trusted-firmware
 * [new ref]         54783a2a93e98717ca2e0ae4c9a4e4b99a931638 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54783a2 .