--- a/Project/ProjectBrowserModel.py Wed Mar 22 18:45:15 2017 +0100 +++ b/Project/ProjectBrowserModel.py Wed Mar 22 18:50:20 2017 +0100 @@ -530,7 +530,7 @@ return None - def addNewItem(self, typeString, name, additionalTypeStrings=[]): + def addNewItem(self, typeString, name, additionalTypeStrings=None): """ Public method to add a new item to the model.