Fix: empty chunk issue. (#12638)

#12570

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/apps/llm_app.py

@@ -373,13 +373,14 @@ def my_llms():
 
 @manager.route("/list", methods=["GET"])  # noqa: F821
 @login_required
-def list_app():
+async def list_app():
     self_deployed = ["FastEmbed", "Ollama", "Xinference", "LocalAI", "LM-Studio", "GPUStack"]
     weighted = []
     model_type = request.args.get("model_type")
+    tenant_id = current_user.id
     try:
-        TenantLLMService.ensure_mineru_from_env(current_user.id)
-        objs = TenantLLMService.query(tenant_id=current_user.id)
+        TenantLLMService.ensure_mineru_from_env(tenant_id)
+        objs = TenantLLMService.query(tenant_id=tenant_id)
         facts = set([o.to_dict()["llm_factory"] for o in objs if o.api_key and o.status == StatusEnum.VALID.value])
         status = {(o.llm_name + "@" + o.llm_factory) for o in objs if o.status == StatusEnum.VALID.value}
         llms = LLMService.get_all()

rag/flow/splitter/splitter.py

@@ -93,6 +93,8 @@ class Splitter(ProcessBase):
                     split_sec = re.split(r"(%s)" % custom_pattern, c, flags=re.DOTALL)
                     if split_sec:
                         for j in range(0, len(split_sec), 2):
+                            if not split_sec[j].strip():
+                                continue
                             docs.append({
                                 "text": split_sec[j],
                                 "mom": c
@@ -156,6 +158,8 @@ class Splitter(ProcessBase):
                 if split_sec:
                     c["mom"] = c["text"]
                     for j in range(0, len(split_sec), 2):
+                        if not split_sec[j].strip():
+                            continue
                         cc = deepcopy(c)
                         cc["text"] = split_sec[j]
                         docs.append(cc)