[opal-11-dev] Element is resolved to the wrong instance

Author: zetachang

lib/react/rendering_context.rb

@@ -92,7 +92,7 @@ def remove_nodes_from_args(args)
       def run_child_block(is_outer_scope)
         result = yield
         result = result.to_s if result.try :acts_as_string?
-        @buffer << result if result.is_a?(String) || (result.is_a?(Element) && @buffer.empty?)
+        @buffer << result if result.is_a?(String) || (result.is_a?(React::Element) && @buffer.empty?)
         raise_render_error(result) if is_outer_scope && @buffer != [result]
       end