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
* @exception SWTError(ERROR_NULL_ARGUMENT)
*	when string is null
* @exception SWTError(ERROR_ITEM_NOT_REMOVED)
*	when the operation fails
*/
public void remove (String string) {
	checkWidget();
	if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
	list.remove (string);
}
/**
* Removes all items.
* <p>
* @exception SWTError(ERROR_THREAD_INVALID_ACCESS)
*	when called from the wrong thread
* @exception SWTError(ERROR_WIDGET_DISPOSED)
*	when the widget has been disposed
*/
public void removeAll () {
	checkWidget();
	text.setText (""); 
	list.removeAll ();
}
/**	 
* Removes the listener.
* <p>
*
* @param listener the listener
*
* @exception SWTError(ERROR_THREAD_INVALID_ACCESS)