Edit operations on nested states cause spurious duplication
When a transition passes through a nested state, edits in that transition cause the part of the transition below the nested state to be duplicated in the diagram. The duplicated transition either pushes other diagram components out of the way, or appears on top of them.
Sometimes the duplication is only noticeable when the SDL file is next opened, at which point OpenGeode complains about triggers already being specified. The duplication is repeated every time the file is opened.
Seen in OpenGeode 3.13.0