Reports: Custom reports when cloning / copying existing one it should also bring the "grouping" options of that copied report

When we clone a custom report it should also bring with it the "grouping" options we set in that original report. Currently, when you clone it copies everything except the grouping row groups and value sums we declared in the report. 

This makes it difficult to re-use reports. It really should bring the grouping AND the and displayed or hidden column settings along to the newly created clone.