Update app_zero.py

app_zero.py

@@ -119,7 +119,7 @@ def patch_pasd_for_diffusers() -> None:
         ],
     )
 
-    # 2) PositionNet was replaced by GLIGENTextBoundingboxProjection
+    # 2) PositionNet -> GLIGENTextBoundingboxProjection alias
     patch_file(
         "./PASD/models/pasd/unet_2d_condition.py",
         [
@@ -131,7 +131,7 @@ def patch_pasd_for_diffusers() -> None:
         ],
     )
 
-    # 3) internal module paths moved
+    # 3) internal module paths moved in newer diffusers
     patch_file(
         "./PASD/models/pasd/unet_2d_blocks.py",
         [
@@ -150,15 +150,17 @@ def patch_pasd_for_diffusers() -> None:
         ],
     )
 
-    # 4) robust ControlNet mixin import fallback
-    controlnet_import_fallback = '''try:
-    from diffusers.loaders import FromOriginalControlNetMixin as FromOriginalControlnetMixin
-except ImportError:
-    try:
-        from diffusers.loaders import FromOriginalControlnetMixin
-    except ImportError:
-        class FromOriginalControlnetMixin:
-            pass'''
+    # 4) robust ControlNet mixin fallback at top level
+    controlnet_import_fallback = (
+        "try:\n"
+        "    from diffusers.loaders import FromOriginalControlNetMixin as FromOriginalControlnetMixin\n"
+        "except ImportError:\n"
+        "    try:\n"
+        "        from diffusers.loaders import FromOriginalControlnetMixin\n"
+        "    except ImportError:\n"
+        "        class FromOriginalControlnetMixin:\n"
+        "            pass"
+    )
 
     patch_file(
         "./PASD/models/pasd/controlnet.py",