Description William Piers 2017-01-23 12:06:18 EST

Since  https://github.com/pcdavid/org.eclipse.sirius/commit/de35505b28c6c6f5d583f3616950708e36b02b73 optimization, in-memory resources are inproperly loaded.

In
https://github.com/pcdavid/org.eclipse.sirius/blob/master/plugins/org.eclipse.sirius/src/org/eclipse/sirius/tools/internal/resource/InMemoryResourceImpl.java

the unload calls
   protected void doUnload() {
        super.doUnload();
        URI uri = getURI();
        InMemoryResourceFactoryImpl.IN_MEMORY_BUFFERS.remove(uri);
    }

If the uri is not removed, then the cache returns old closed sessions resources.