Bug 155943 "Restore Properties" is always enabled for extended chart
Steps to reproduce: 1.New a report, includes a library, extends lib.chart 2.Choose the chart Expected result: "Restore Properties" is disabled untill set/change any local properties for the chart Actual result: "Restore Properties" is always enabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/writer/ModuleWriter.java
try
				{
					if ( image.getLocalProperty( getModule( ),
							(PropertyDefn) image.getDefn( ).getMember(
									EmbeddedImage.DATA_MEMBER ) ) != null )
					{
						byte[] data = base
								.encode( image.getData( getModule( ) ) );
						String value = new String( data, EmbeddedImage.CHARSET );
						if ( value.length( ) < IndentableXMLWriter.MAX_CHARS_PER_LINE )
							writeEntry( DesignSchemaConstants.PROPERTY_TAG,
									EmbeddedImage.DATA_MEMBER, value, false );
						else
							writeLongIndentText(
									DesignSchemaConstants.PROPERTY_TAG,
									EmbeddedImage.DATA_MEMBER, value );
					}
				}
				catch ( UnsupportedEncodingException e )
				{
					assert false;
				}
				writer.endElement( );
			}
			writer.endElement( );
		}
	}
	/**
	 * Visits the translations of the module.
	 *