$ git clone -n https://gitee.com/wency_cn/imath.git /var/lib/mock/dist-an23-build-502169-74794/root/chroot_tmpdir/scmroot/imath
Cloning into '/var/lib/mock/dist-an23-build-502169-74794/root/chroot_tmpdir/scmroot/imath'...
$ git fetch origin f11fe451371f3045eb47aa08d35736ec11f93bcc:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/imath
 * [new ref]         f11fe451371f3045eb47aa08d35736ec11f93bcc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f11fe45 Update code from upstream