[modelio] corrupted diagrammes

Sympom

I experienced several times now that diagrammes got currupted. Some components missing others renamed. Very annoying and tedious to fix.

Cause

I did not actually test this, but I suspect that the cause is copying a diagramme to take advantage of already defined objects. But then

• one renames some objects
• one deletes some objects
• one adds objects

Latter is no problem at all but as the objects of the copy diagramme are not copies but sort of links to the original

• renaming will rename the orignal
• deleting will delete the original

thus rendering the original diagramme in a dire state. I have not found means neither to just remove objects from a Diagramme instead of deleting them nor to cut the link to the original.

Solution

Create an all new Diagramme.