Bug 143474 [FieldAssist] Info popup in ContentProposalAdapter shows obsolete information
This problem occurs when the info popup dialog is already up. When I scroll through a list of content proposals in the content proposal popup dialog, if the current selection has extra information to show, the associated info popup dialog comes up. Then if I scroll to another selection which does not have any extra information to show, the info popup dialog does not go away. Instead, it keeps showing the context information from my last selection. Shouldn't the info popup be closed if the new selection has no additional information to show? Thanks.
bundles/org.eclipse.jface/src/org/eclipse/jface/fieldassist/ContentProposalAdapter.java
* @return the control on which the proposal adapter is installed.
	 */
	public Control getControl() {
		return control;
	}
	/**
	 * Get the label provider that is used to show proposals.
	 * 
	 * @return the {@link ILabelProvider} used to show proposals, or
	 *         <code>null</code> if one has not been installed.
	 */
	public ILabelProvider getLabelProvider() {
		return labelProvider;
	}
	/**
	 * Return a boolean indicating whether the receiver is enabled.
	 * 
	 * @return <code>true</code> if the adapter is enabled, and
	 *         <code>false</code> if it is not.
	 */
	public boolean isEnabled() {
		return isEnabled;
	}
	/**
	 * Set the label provider that is used to show proposals. The lifecycle of
	 * the specified label provider is not managed by this adapter. Clients must
	 * dispose the label provider when it is no longer needed.
	 * 
	 * @param labelProvider
	 *            the (@link ILabelProvider} used to show proposals.