$ git clone -n https://gitee.com/HVML/PurC.git /var/lib/mock/dist-an23-build-278255-64446/root/chroot_tmpdir/scmroot/PurC
Cloning into '/var/lib/mock/dist-an23-build-278255-64446/root/chroot_tmpdir/scmroot/PurC'...
$ git fetch origin fe0f20a124d303b7f03df39abcc6c7b5ca8e7346:KOJI_FETCH_HEAD
From https://gitee.com/HVML/PurC
 * [new ref]             fe0f20a124d303b7f03df39abcc6c7b5ca8e7346 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe0f20a12 tune error code