Merge pull request #1130 from jamiepine/prep/pr-1112

Fix infinite HF retry storm when loading a cached model offline

backend/backends/chatterbox_backend.py

@@ -29,11 +29,17 @@ logger = logging.getLogger(__name__)
 
 CHATTERBOX_HF_REPO = "ResembleAI/chatterbox"
 
-# Files that must be present for the multilingual model
+# The files ChatterboxMultilingualTTS.from_pretrained() downloads, as of
+# chatterbox-tts 0.1.7 (mtl_tts.py allow_patterns). The load runs with HF
+# offline mode forced when this reports cached, so a partial snapshot must not
+# count as cached -- if upstream adds a file to that list, add it here too.
 _MTL_WEIGHT_FILES = [
     "t3_mtl23ls_v2.safetensors",
     "s3gen.pt",
     "ve.pt",
+    "grapheme_mtl_merged_expanded_v1.json",
+    "conds.pt",
+    "Cangjie5_TC.json",
 ]