Update app.py

app.py

@@ -83,7 +83,7 @@ def infer(
 ):
     generator = torch.Generator(device).manual_seed(seed)
     
-    if use_control_net and control_image and source_image is not None:
+    if use_control_net and control_image is not None and source_image is not None:
         # Используем ControlNet
         image = pipe_controlnet(
             prompt=prompt,