https://bugs.documentfoundation.org/show_bug.cgi?id=161982
--- Comment #1 from Elmar <rob...@iafrica.com> --- Created attachment 195207 --> https://bugs.documentfoundation.org/attachment.cgi?id=195207&action=edit sorting when one tries to do something which is not possible, there should be a warning -- You are receiving this mail because: You are the assignee for the bug.