fix: prevent premature finalization when text buffer reaches max size

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/meta_plugin/text.rs

@@ -225,11 +225,12 @@ impl MetaPlugin for TextMetaPlugin {
                     // If it's text, count words and lines for this chunk and stop buffering
                     self.count_text_stats(&data[..bytes_to_take]);
                     
-                    // If we've reached our buffer limit, drop the buffer and finalize
+                    // If we've reached our buffer limit, drop the buffer but don't finalize yet
+                    // We need to wait for finalize() to be called to output word and line counts
                     if buffer_len >= self.max_buffer_size {
+                        log::debug!("TEXT: Reached max buffer size, dropping buffer but not finalizing");
                         self.buffer = None; // Drop the buffer
-                        self.is_finalized = true;
-                        true
+                        false  // Don't finalize yet
                     } else {
                         false
                     }