to have undo/redo
working (even if a part of te code is in a subclass in SP)

Merge branch 'MasterBugFixing' of https://github.com/bonitasoft/bonita-studio.git into MasterBugFixing

Edit Data without change : refactor window opened anyway
BS-9856
It's possible to create empty name document

correction of test

Merge branch 'MasterBugFixing' of https://github.com/bonitasoft/bonita-studio.git into MasterBugFixing

Edit Data without change : refactor window opened anyway
BS-9856
It's possible to create empty name document

Fix unit test

of Description which is empty String and not null value when no
description value is specified

Copy expression in referenced element
return expression if referencedElement is null

repository, it take stoo much time and it will be performed another time
anyway.

when settign contents on MANIFEST file, so just force the set contents
and everything get back to normal

Widget name refactoring not working in Group widget

tests to be aware when different langauges are available