Sort action breaks the 'group by' behaviour

Issue Description

If you have a JRXML report with Table component with a group and apply sort action to a column that is not in the 'group by'  clause, it breaks the 'group by' behaviour. Please find attached printscreen of the issue:

Resolution

Setup net.sf.jasperreports.create.sort.fields.for.groups=true property for Dataset which is used for Table.

The property automatically adds a sort field that corresponds to the group in the report:

http://jasperreports.sourceforge.net/config.reference.html#net.sf.jasperreports.create.sort.fields.for.groups

Result of applying the property:

Ref. Case 00062619