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 a constant indicating how an accepted proposal should affect the
	 *         control's content. Should be one of <code>PROPOSAL_INSERT</code>,
	 *         <code>PROPOSAL_REPLACE</code>, or <code>PROPOSAL_IGNORE</code>.
	 *         (Default is <code>PROPOSAL_INSERT</code>).
	 */
	public int getProposalAcceptanceStyle() {
		return proposalAcceptanceStyle;
	}
	/**
	 * Set the integer style that indicates how an accepted proposal affects the
	 * control's content.
	 * 
	 * @param acceptance
	 *            a constant indicating how an accepted proposal should affect
	 *            the control's content. Should be one of
	 *            <code>PROPOSAL_INSERT</code>, <code>PROPOSAL_REPLACE</code>,
	 *            or <code>PROPOSAL_IGNORE</code>
	 */
	public void setProposalAcceptanceStyle(int acceptance) {
		proposalAcceptanceStyle = acceptance;
	}
	/**
	 * Return the integer style that indicates how keystrokes affect the content
	 * of the proposal popup while it is open.
	 * 
	 * @return a constant indicating how keystrokes in the proposal popup affect
	 *         filtering of the proposals shown. <code>FILTER_NONE</code>
	 *         specifies that no filtering will occur in the content proposal
	 *         list as keys are typed. <code>FILTER_CUMULATIVE</code>
	 *         specifies that the content of the popup will be filtered by a