fix(tagger): caption checkbox is the single source of truth for NL; auto re-run no longer reads chip outputs (Gradio 6 stale-choice crash)

app.py

@@ -1865,9 +1865,9 @@ with gr.Blocks(**_blocks_kw) as demo:
         ) else "ensemble"
         effective_fmt = f"{fmt}|{mode_key}" if mode_key != "ensemble" else fmt
         skip_pose = not bool(pose_toggle)
-        # Selecting the "nl" radio item always requests the caption, even if
-        # the checkbox value hasn't propagated through the sync handler yet.
-        with_caption = bool(caption_toggle) or mode == "nl"
+        # The caption checkbox is the single source of truth for the NL
+        # caption; the "nl" radio item only checks the box (see on_tag_rerun).
+        with_caption = bool(caption_toggle)
         return on_tag_image(image, gen_threshold, char_threshold, effective_fmt, lang, progress=progress, skip_pose=skip_pose, with_caption=with_caption)
 
     tagger_outputs = [
@@ -1882,12 +1882,8 @@ with gr.Blocks(**_blocks_kw) as demo:
     )
 
     # The "Florence NL Caption" radio item ⇔ the caption checkbox are synced:
-    # picking the radio item checks the box; unchecking snaps back to Smart.
-    tagger_mode.change(
-        fn=lambda mode: gr.update(value=True) if mode == "nl" else gr.update(),
-        inputs=[tagger_mode],
-        outputs=[tagger_caption_toggle],
-    )
+    # picking the radio item checks the box (inside on_tag_rerun below, in
+    # the same event as the caption run); unchecking snaps back to Smart.
     tagger_caption_toggle.change(
         fn=lambda checked: gr.update(value="ensemble") if not checked else gr.update(),
         inputs=[tagger_caption_toggle],
@@ -1895,25 +1891,33 @@ with gr.Blocks(**_blocks_kw) as demo:
     )
 
     # Auto re-run when the model or the pose toggle changes (never for the
-    # caption checkbox — captioning is opt-in and slow). No-op without an image.
-    def on_tag_rerun(image, gen_threshold, char_threshold, fmt, lang, mode, pose_toggle, caption_toggle, out_html, out_apply, out_chips, out_chars, out_tags, out_copy, out_raw, out_esc, progress=gr.Progress()):
+    # caption checkbox — captioning is opt-in and slow). No-op without an
+    # image. Selecting the "nl" radio item checks the caption box and runs
+    # the caption in the same event, so the checkbox stays the visible source
+    # of truth. The component outputs are deliberately NOT read back as
+    # inputs here: in Gradio 6, CheckboxGroup.preprocess validates the value
+    # against the current choices and raises on stale selections, which
+    # crashed re-runs ("Value: ... is not in the list of choices").
+    def on_tag_rerun(image, gen_threshold, char_threshold, fmt, lang, mode, pose_toggle, caption_toggle, progress=gr.Progress()):
+        with_caption = bool(caption_toggle) or mode == "nl"
+        caption_update = gr.update(value=True) if mode == "nl" else gr.skip()
         if image is None:
-            return out_html, out_apply, out_chips, out_chars, out_tags, out_copy, out_raw, out_esc
-        return on_tag_image_with_mode(image, gen_threshold, char_threshold, fmt, lang, mode, pose_toggle, caption_toggle, progress=progress)
+            return (gr.skip(),) * 8 + (caption_update,)
+        return tuple(on_tag_image_with_mode(image, gen_threshold, char_threshold, fmt, lang, mode, pose_toggle, with_caption, progress=progress)) + (caption_update,)
 
     rerun_inputs = [
         tagger_image, tagger_gen_threshold, tagger_char_threshold, tagger_format,
         tagger_mode, tagger_pose_toggle, tagger_caption_toggle, lang_state,
-    ] + tagger_outputs
+    ]
     tagger_mode.change(
         fn=on_tag_rerun,
         inputs=rerun_inputs,
-        outputs=tagger_outputs,
+        outputs=tagger_outputs + [tagger_caption_toggle],
     )
     tagger_pose_toggle.change(
         fn=on_tag_rerun,
         inputs=rerun_inputs,
-        outputs=tagger_outputs,
+        outputs=tagger_outputs + [tagger_caption_toggle],
     )
     tagger_chips.change(
         fn=on_tagger_selection_change,