$ git clone -n https://gitee.com/wenyuzifang/tomcat.git /var/lib/mock/dist-an23-build-446467-73347/root/chroot_tmpdir/scmroot/tomcat
Cloning into '/var/lib/mock/dist-an23-build-446467-73347/root/chroot_tmpdir/scmroot/tomcat'...
$ git fetch origin b39722088e22eb68f03d18821aacc79893265d42:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/tomcat
 * [new ref]         b39722088e22eb68f03d18821aacc79893265d42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b397220 Update code from upstream