Bug 343406 Trim stacks stay invisible in other perspectives even when rendered children are under it
1. Minimize the 'Outline' view's stack. 2. Window > Open Perspective > Debug 3. Activate the 'Debug' view. 4. Ctrl+M 5. There is minimized stuff in the left trim but the right trim is completely empty.
bundles/org.eclipse.e4.ui.workbench.addons.swt/src/org/eclipse/e4/ui/workbench/addons/minmax/MinMaxAddon.java
} else {
					setState(elementToChange, null);
				}
			}
		}
	};
	private EventHandler widgetListener = new EventHandler() {
		public void handleEvent(Event event) {
			final MUIElement changedElement = (MUIElement) event.getProperty(EventTags.ELEMENT);
			if (!(changedElement instanceof MPartStack) && !(changedElement instanceof MArea))
				return;
			final CTabFolder ctf = getCTFFor(changedElement);
			if (ctf == null)
				return;
			adjustCTFButtons(changedElement);
			if (changedElement instanceof MPlaceholder)
				return;
			ctf.removeCTabFolder2Listener(CTFButtonListener); 
			ctf.addCTabFolder2Listener(CTFButtonListener);
			ctf.removeMouseListener(CTFDblClickListener); 
			ctf.addMouseListener(CTFDblClickListener);
		}
	};
	private void setState(MUIElement element, String state) {
		if (element instanceof MArea)
			element = element.getCurSharedRef();
		MUIElement parentElement = element.getParent();
		if (parentElement instanceof MArea)
			element = parentElement.getCurSharedRef();
		element.getTags().remove(MINIMIZED_BY_ZOOM);