[Lazarus] Qt5 OpenDialog/SaveDialog file filter ok?

[AlexeyT]

Sorry, that Filter works ok.

Another question. In qt5/qtwsdialogs.pp we have

   if (AFileDialog is TSaveDialog) and (trim(TmpFilter)='()') then
     Result := ''
   else
     Result := GetUtf8String(TmpFilter);

so that empty dlg.Filter will give empty result Qt filter. Only for 
SaveDialog! Why only for SaveDailog? it is needed for OpenDialog too, 
because result "()" looks bad.

AT