Bug 176436 Charts Imported from Libraries do not update when libraries change
During a live presentation of BIRT at EclipseCon, we came across a rather embarassing issue. When charts are included in a library, and imported into a report design from a library, any changes to the library instance of the chart do not reflect in the report itself.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/SimpleGroupElementHandle.java
{
			DesignElementHandle current = ( (DesignElementHandle) elements
					.get( i ) );
			DesignElementHandle container = current.getContainer( );
			
			
			if ( ICellModel.DROP_PROP.equals( propName ) )
			{
				if ( current instanceof CellHandle )
				{
					if ( container == null )
					{
						continue;
					}
					if ( !( container.getContainer( ) instanceof GroupHandle ) )
						return true;
				}
			}
			else
			{
				while ( container != null )
				{
					if ( container instanceof MasterPageHandle )
						return true;
					container = container.getContainer( );
				}
			}
		}
		return false;
	}