Bug 120317 Set "dimension" property to 3D in "properties" view, error appears in layout editor.
Description: Set "dimension" property to 3D in "properties" view, error appears in layout editor. Steps to reproduce: 1. Add a 2D chart in property editor. 2. Set its dimension property to "three-dimension" in properties view. 3. Error appears in chart.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/extension/PeerExtensibilityProvider.java
{
					PeerExtensibilityProvider parentProvider = parent
							.getExtensibilityProvider( );
					HashMap propValues = parentProvider.extensionPropValues;
					value = propValues.get( propDefn.getName( ) );
					if ( value != null )
						break;
					parent = (ExtendedItem) parent.getExtendsElement( );
				}
			}
			else
			{
				
				
				this.extensionPropValues.remove( propDefn.getName( ) );
			}
			if ( value != null )
			{
				byte[] raw = null;
				try
				{
					raw = value.toString( ).getBytes(
							UnicodeUtil.SIGNATURE_UTF_8 );
				}
				catch ( UnsupportedEncodingException e )
				{
					assert false;
				}
				reportItem.deserialize( propDefn.getName( ),
						new ByteArrayInputStream( raw ) );