Bug 89773 [Viewers] Search keeps showing selection while results still being added
build I20050330-0500 - do a search that will generate many results (refs to PartInitException in my case) - as the results are being added, select one of the first matches, then use the scroll wheel or scroll bar to scroll down and see the results as they come in - it keeps jumping back to show the selection I hope it's not the basic viewer refresh code that's doing this (I don't think so).
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
/**
     * Expands the root of the viewer's tree to the given level.
     * 
     * @param level
     *           non-negative level, or <code>ALL_LEVELS</code> to expand all
     *           levels of the tree
     */
    public void expandToLevel(int level) {
        expandToLevel(getRoot(), level);
    }
    /**
     * Expands all ancestors of the given element so that the given element
     * becomes visible in this viewer's tree control, and then expands the
     * subtree rooted at the given element to the given level.
     * 
     * @param element
     *           the element
     * @param level
     *           non-negative level, or <code>ALL_LEVELS</code> to expand all
     *           levels of the tree
     */
    public void expandToLevel(Object element, int level) {
        Widget w = internalExpand(element, true);
        if (w != null)
            internalExpandToLevel(w, level);
    }
    /**
     * Fires a tree collapsed event. Only listeners registered at the time this
     * method is called are notified.
     *