Creating work item with validateOnly=True causes exception

[SAnCherepan]

validateOnly=true is used to test work item creation without actually creating one.
Therefore, response contains fields of not-created-workitem.
Logically, it does not contain System.ID.
That breaks WorkItem.__init__() method that tries to self.id = self.data["id"] while data has no "id".

[ondrno]

@allburov , @SAnCherepan : what would be the expected behaviour when calling, e.g. create_workitem('Bug', validateOnly=true)?

A solution could be that create_workitem() would return True/False (depending on http response) instead of returning a Workitem instance. What do you think?

[Boltyk]

Maybe fixed with 39aa216