Bug 283216 Editor saving doesn't work when editor is reopened
Build 0.9.0.I20090710-1930 1) Create a new general project 2) Create a text file, a.txt 3) Type some words in the editor, notice dirty indicator works 4) Hit Ctrl+S, editor is saved and dirty indicator goes away 5) Close the editor 6) Double-click the file in Package Explorer to reopen the editor 7) Type contents in the editor -> Now the dirty state never appears, and the save command is never enabled. It's not possible to edit the file after this point.
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/workbench/ui/renderers/swt/StackRenderer.java
CTabItem cti = findItemForPart(parentElement, element);
		if (cti == null) {
			int index = calcIndexFor(element);
			
			
			cti = new ETabItem((ETabFolder) ctf, createFlags, index);
			
			
			String cssClassName = (String) ctf
					.getData("org.eclipse.e4.ui.css.CssClassName"); 
			stylingEngine.setClassname(cti, cssClassName);
		}
		cti.setData(OWNING_ME, element);
		cti.setText(itemPart.getName());
		cti.setImage(getImage(element));
		cti.setControl((Control) element.getWidget());
		
		hookTabControllerLogic(parentElement, element, cti);
	}
	private int calcIndexFor(final MPart element) {
		int index = 0;
		
		EList<MPart> kids = element.getParent().getChildren();
		for (Iterator iterator = kids.iterator(); iterator.hasNext();) {
			MPart mPart = (MPart) iterator.next();
			if (mPart == element)
				return index;
			if (mPart.isVisible())