}
builder.elementEnd();
content1 = new ContentDocument(ConversationSchemas.BLIP_SCHEMA_CONSTRAINTS);
content1.setRegistries(Editor.ROOT_REGISTRIES);
content1.consume(builder.build());
doc1 = content1.getMutableDoc();
content2 = new ContentDocument(ConversationSchemas.BLIP_SCHEMA_CONSTRAINTS);
content2.setRegistries(Editor.ROOT_REGISTRIES);
content2.consume(builder.build());