Bug 132652 Click other property will cause the previous revised value lost in Properties sheet.
Description: Click other property will cause the previous revised value lost in Properties sheet. Steps to reproduce: 1. Insert a label 2. Open Properties sheet, select the label. 3. Input 10pt in Margin left, then click Margin right. Expected result: 10pt is saved. Actual result: 10pt was lost.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/swt/custom/CCombo.java
* The widget is searched starting at start including
* the end position until an item is found that
* is equal to the search itenm.  If no item is
* found, -1 is returned.  Indexing is zero based.
*
* @param string the search item
* @param start the starting position
* @return the index of the item
*
* @exception SWTError(ERROR_THREAD_INVALID_ACCESS)
*	when called from the wrong thread
* @exception SWTError(ERROR_WIDGET_DISPOSED)
*	when the widget has been disposed
* @exception SWTError(ERROR_NULL_ARGUMENT)
*	when string is null
*/
public int indexOf (String string, int start) {
	checkWidget();
	if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
	return list.indexOf (string, start);
}
void initAccessible() {
	getAccessible().addAccessibleListener(new AccessibleAdapter() {
		public void getHelp(AccessibleEvent e) {
			e.result = getToolTipText();
		}
	});
	
	getAccessible().addAccessibleTextListener(new AccessibleTextAdapter() {
		public void getCaretOffset(AccessibleTextEvent e) {