fix controlnets for latest diffusers v

Author: hipsterusername

invokeai/backend/util/hotfixes.py

@@ -5,7 +5,11 @@
 from diffusers.configuration_utils import ConfigMixin, register_to_config
 from diffusers.loaders.single_file_model import FromOriginalModelMixin
 from diffusers.models.attention_processor import AttentionProcessor, AttnProcessor
-from diffusers.models.controlnet import ControlNetConditioningEmbedding, ControlNetOutput, zero_module
+from diffusers.models.controlnets.controlnet import (
+    ControlNetConditioningEmbedding,
+    ControlNetOutput,
+    zero_module,
+)
 from diffusers.models.embeddings import (
     TextImageProjection,
     TextImageTimeEmbedding,
@@ -775,7 +779,15 @@ def forward(
 
 
 diffusers.ControlNetModel = ControlNetModel
-diffusers.models.controlnet.ControlNetModel = ControlNetModel
+# Patch both the new and legacy module paths for compatibility
+try:
+    diffusers.models.controlnets.controlnet.ControlNetModel = ControlNetModel
+except Exception:
+    # Fallback for environments still exposing the legacy path
+    try:
+        diffusers.models.controlnet.ControlNetModel = ControlNetModel
+    except Exception:
+        pass
 
 
 # patch LoRACompatibleConv to use original Conv2D forward function