Bug 41927 [Dialogs] Selecting in PreferenceDialog generates too many invalid entries
20030825 If you select an entry, close the dialog and then reopen it selecting anotehr entry will result in a "this page has invalid values" although you selected nothing.
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
true);
		getShell().setDefaultButton(okButton);
		cancelButton =
			createButton(
				parent,
				IDialogConstants.CANCEL_ID,
				IDialogConstants.CANCEL_LABEL,
				false);
		if (isHelpAvailable) {
			helpButton =
				createButton(
					parent,
					IDialogConstants.HELP_ID,
					IDialogConstants.HELP_LABEL,
					false);
		}
	}
	/* (non-Javadoc)
	 * Method declared on Dialog.
	 */
	protected Control createContents(final Composite parent) {
		final Control[] control = new Control[1];
		BusyIndicator.showWhile(getShell().getDisplay(), new Runnable() {
			public void run() {
				control[0] = PreferenceDialog.super.createContents(parent);
				
				selectSavedItem();
			}
		});
		return control[0];