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
e.doit = event.doit;
			e.character = event.character;
			e.keyCode = event.keyCode;
			notifyListeners(SWT.Traverse, e);
			event.doit = e.doit;
			event.detail = e.detail;
			break;
		}
		case SWT.KeyUp: {		
			Event e = new Event();
			e.time = event.time;
			e.character = event.character;
			e.keyCode = event.keyCode;
			e.stateMask = event.stateMask;
			notifyListeners(SWT.KeyUp, e);
			break;
		}
		case SWT.KeyDown: {
			if (event.character == SWT.ESC) { 
				
				dropDown (false);
			}
			if ((event.stateMask & SWT.ALT) != 0 && (event.keyCode == SWT.ARROW_UP || event.keyCode == SWT.ARROW_DOWN)) {
				dropDown (false);
			}
			if (event.character == SWT.CR) {
				
				dropDown (false);
				Event e = new Event();
				e.time = event.time;