Bug 287103 [CommonNavigator] contentServiceLabelProvider doesn't properly implement overrides
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/internal/navigator/NavigatorContentServiceContentProvider.java
} else {
					pipelinedContentProvider.getPipelinedChildren(aParentOrPath,
							pipelinedChildren);
				}
				
				
				
				overridingExtensions = theOverridingExtensions[i]
						.getOverridingExtensionsForTriggerPoint(aParentOrPath);
				if (overridingExtensions.length > 0) {
					pipelinedChildren = pipelineChildren(aParentOrPath,
							overridingExtensions, pipelinedChildren, elements);
				}
			}
		}
		return pipelinedChildren;
	}
	/**
	 * Currently this method only checks one level deep. If the suppressed
	 * extension of the given descriptor is contained lower in the tree, then
	 * the extension could still be invoked twice.
	 * 
	 * @param aDescriptor
	 *            The descriptor which may be overriding other extensions.
	 * @param theEnabledExtensions
	 *            The other available extensions.
	 * @return True if the results should be pipelined through the downstream
	 *         extensions.
	 */
	private boolean isOverridingExtensionInSet(