Auto rollback is not occur when update caused a version-buffer-full error (autocommit=1)

Build tested:

mscadmin> getsoft
getsoftwareinfo Thu Jun 9 16:41:20 2016

Name : mariadb-columnstore-platform Relocations: (not relocatable)
Version : 1.0 Vendor: MariaDB Corporation Ab
Release : 0 Build Date: Wed 08 Jun 2016 09:45:36 AM CDT
Install Date: Thu 09 Jun 2016 08:12:14 AM CDT Build Host: srvbuilder

When autocommit=1, if Update (have not tested other DML commands) caused a version-buffer-full error, the updated data should be rolled back. In Columnstore, such rollback is not automatically triggered anymore.