Bug 64372 Projects showing up in Package Explorer twice [package explorer]
20040527-0800 When I load the platform-ui module and org.eclipse.tests from HEAD org.eclipse.tests is showing up twice in the PackageExplorer. This is not a a problem in the Resource Navigator. Open type only shows it once so it doesn't look like there are two instance in the workspace
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
}
	
	public void saveState(IMemento memento) {
		if (fViewer == null) {
			
			if (fMemento != null) 
				memento.putMemento(fMemento);
			return;
		}
		saveCurrentFrame(memento);
		saveLayoutState(memento);
		saveLinkingEnabled(memento);
		
		
		fActionSet.saveFilterAndSorterState(memento);
	}
	
	private void saveCurrentFrame(IMemento memento) {
        FrameAction action = fActionSet.getUpAction();
        FrameList frameList= action.getFrameList();
		if (frameList.getCurrentIndex() > 0) {
			TreeFrame currentFrame = (TreeFrame) frameList.getCurrentFrame();
			IMemento frameMemento = memento.createChild(TAG_CURRENT_FRAME);
			currentFrame.saveState(frameMemento);
		}
	}
	private void saveLinkingEnabled(IMemento memento) {
		memento.putInteger(PreferenceConstants.LINK_PACKAGES_TO_EDITOR, fLinkingEnabled ? 1 : 0);
	}
	/**