correctly handle text in form elements ala nokogirl commit 73c5df2

src/parser.c

@@ -2986,6 +2986,9 @@ static bool handle_in_body(GumboParser* parser, GumboToken* token) {
                         ignore_token(parser);
                         return false;
                     }
+                    // Since we remove the form node without popping, we need to make sure
+                    // that we flush any text nodes at the end of the form
+                    maybe_flush_text_node_buffer(parser);
                     // This differs from implicitly_close_tags because we remove *only* the
                     // <form> element; other nodes are left in scope.
                     generate_implied_end_tags(parser, GUMBO_TAG_LAST);