Problem when instanciate from the outline with the file arleady open
When launching RAMSES on the system implementation from the outline view, the second time it creates a second instance in the aaxl2 file. If we launch RAMSES from the instance in the aaxl2 file, this problem does not occur.
This problem occurs only when the aaxl2 file is open, because the ResourceSet of the editor is not clear.
After clearing the ResourceSet, the System Instance generated is empty, whereas if we keep the change of the open file, it is not.