id summary reporter owner description type status priority milestone component version resolution keywords cc 4186 Duplicate of Modelica class with illegal class name Christian Kral Adeel Asghar "Create a test model ""Test"" in OpenModelica Editor. Save the model. Make a right click on ""Test"" to and select ""Duplicate"". Choose the duplicate name ""Test B"" with a blank between ""Test"" and ""B"". Now there are two scenarios which may happen. a) The new model ""Test B"" is displayed... which is illegal b) The new model is not displayed. Quit OpenModelica -- it then claims that there is one unsaved class ""Test B"" It is not clear in advance whether OMEdit will show behavior a) or b). I noticed either one when trying to make the issue reproducible. " defect closed high 1.12.0 OMEdit fixed