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
/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.api.GroupElementHandle#getPropertyHandle(java.lang.String)
	 */
	public GroupPropertyHandle getPropertyHandle( String propName )
	{
		List commProps = getCommonProperties( );
		for ( int i = 0; i < commProps.size( ); i++ )
		{
			ElementPropertyDefn propDefn = (ElementPropertyDefn) commProps
					.get( i );
			if ( propDefn.getName( ).equalsIgnoreCase( propName ) )
			{
				return new GroupPropertyHandle( this, propDefn );
			}
		}
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.api.GroupElementHandle#isInGroup(org.eclipse.birt.report.model.api.DesignElementHandle)
	 */
	protected boolean isInGroup( DesignElementHandle element )
	{
		return elements.contains( element );
	}
}