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Build: 080701 - Create a class element - Create an operation in the class - Double click the operation, popup one line editor comes up 'visibility return typename (parameter) {properties...} - Hover the mouse to the properties window -> parameters Click '...' - Press <Cancel> in the Parameters dialog Notice the one line editor is still displayed - Hover the mouse to the diagram, click <enter> or Even delete the entire class element There is no way to make it disappear
The issue is reproducible on MacOS but not on Vista with the latest build
diagram reloading should be a workaround, so having it as a special case(may be rare) and also relatively easy workaround it may be P3. but I can't verify on Mac.
Not a common use case and there's a workaround; thus lowering the priority to P3.