From 62bc8e8a15a0b4c695ec31ff09ba93a3280965c5 Mon Sep 17 00:00:00 2001
From: Morningstar202604 <320475654+Morningstar202604@users.noreply.github.com>
Date: Mon, 28 Sep 2026 07:03:54 +0000
Subject: [PATCH] fix: compare unchanged translation against
 translate_input.unicode

post_translate_paragraph compared the translated string with the
TranslateInput object itself, so the unchanged-output branch could never
be taken: even when the translator returns translate_input.unicode
verbatim, the paragraph was re-typeset and its original layout objects
were dropped. Compare against the string payload instead.

Ref: #610
---
 babeldoc/format/pdf/document_il/midend/il_translator.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/babeldoc/format/pdf/document_il/midend/il_translator.py b/babeldoc/format/pdf/document_il/midend/il_translator.py
index 6c5d16137..eaf000b79 100644
--- a/babeldoc/format/pdf/document_il/midend/il_translator.py
+++ b/babeldoc/format/pdf/document_il/midend/il_translator.py
@@ -997,7 +997,7 @@ def post_translate_paragraph(
     ):
         """Post-translation processing: update paragraph with translated text."""
         tracker.set_output(translated_text)
-        if translated_text == translate_input:
+        if translated_text == translate_input.unicode:
             if llm_translate_tracker := tracker.last_llm_translate_tracker():
                 llm_translate_tracker.set_placeholder_full_match()
             return False