#1 Diagram layout reverts to default on re-opening diagram

[Colin Snook]

Often, when an existing diagram is reopened by clicking in the navigator, the existing diagram layout is not found and a new layout is started.

Closing and re-opening the diagram finds the old diagram layout.

[Luis Diaz]

Hello,

There are some cases where a refined diagram lose the layout and the file is called #0 so there is not chance to get the old one.
I can not specify in which scenarios it happens.

Best regards

[Colin Snook]

This is caused by EcoreUtil.equals sometimes returning false when the correct diagram element layout to open has in fact been found. Fixed by not using EcoreUtils for this test and instead compare 'reference' property which is a fully qualified id. commit b4170ce