Bug 172019 [Viewers] Plus sign doesn't disappear when using deferred content providers
3.3 M4 Use a tree viewer with a content provider using IDeferredWorkbenchAdapter and DeferredTreeContentManager. When fetchDeferredChildren is call and no elements are reported to the element collector the plus sign of the node doesn't disappear. This work without problems under Windows and Mac/OS (e.g. the plus sign disappears).
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
}
	/**
	 * Compare the two elements using the given sorter. If the sorter is a
	 * {@link TreePathViewerSorter}, the provided tree path will be used. If
	 * the tree path is null and the sorter is a tree path sorter, then the
	 * elements are root elements
	 * 
	 * @param comparator
	 *            the sorter
	 * @param parentPath
	 *            the path of the elements' parent
	 * @param e1
	 *            the first element
	 * @param e2
	 *            the seocnd element
	 * @return the result of comparing the two elements
	 */
	private int internalCompare(ViewerComparator comparator,
			TreePath parentPath, Object e1, Object e2) {
		if (comparator instanceof TreePathViewerSorter) {
			TreePathViewerSorter tpvs = (TreePathViewerSorter) comparator;
			return tpvs.compare(this, parentPath, e1, e2);
		}
		return comparator.compare(this, e1, e2);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.StructuredViewer#getSortedChildren(java.lang.Object)
	 */