From c715ef04d1edb1a112a602639ed3bb292fdeb0e2 Mon Sep 17 00:00:00 2001
From: AUTOMATIC <16777216c@gmail.com>
Date: Thu, 29 Sep 2022 15:40:28 +0300
Subject: [PATCH] fix for incorrect model weight loading for #814

---
 modules/sd_hijack.py | 9 +++++++++
 modules/sd_models.py | 6 +++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/modules/sd_hijack.py b/modules/sd_hijack.py
index 2848a251..5945b7c2 100644
--- a/modules/sd_hijack.py
+++ b/modules/sd_hijack.py
@@ -245,6 +245,7 @@ class StableDiffusionModelHijack:
 
         model_embeddings.token_embedding = EmbeddingsWithFixes(model_embeddings.token_embedding, self)
         m.cond_stage_model = FrozenCLIPEmbedderWithCustomWords(m.cond_stage_model, self)
+
         self.clip = m.cond_stage_model
 
         if cmd_opts.opt_split_attention_v1:
@@ -263,6 +264,14 @@ class StableDiffusionModelHijack:
 
         self.layers = flatten(m)
 
+    def undo_hijack(self, m):
+        if type(m.cond_stage_model) == FrozenCLIPEmbedderWithCustomWords:
+            m.cond_stage_model = m.cond_stage_model.wrapped
+
+        model_embeddings = m.cond_stage_model.transformer.text_model.embeddings
+        if type(model_embeddings.token_embedding) == EmbeddingsWithFixes:
+            model_embeddings.token_embedding = model_embeddings.token_embedding.wrapped
+
     def apply_circular(self, enable):
         if self.circular_enabled == enable:
             return
diff --git a/modules/sd_models.py b/modules/sd_models.py
index 7a5edced..eb21e498 100644
--- a/modules/sd_models.py
+++ b/modules/sd_models.py
@@ -137,7 +137,7 @@ def load_model():
 
 
 def reload_model_weights(sd_model, info=None):
-    from modules import lowvram, devices
+    from modules import lowvram, devices, sd_hijack
     checkpoint_info = info or select_checkpoint()
 
     if sd_model.sd_model_checkpint == checkpoint_info.filename:
@@ -148,8 +148,12 @@ def reload_model_weights(sd_model, info=None):
     else:
         sd_model.to(devices.cpu)
 
+    sd_hijack.model_hijack.undo_hijack(sd_model)
+
     load_model_weights(sd_model, checkpoint_info.filename, checkpoint_info.hash)
 
+    sd_hijack.model_hijack.hijack(sd_model)
+
     if not shared.cmd_opts.lowvram and not shared.cmd_opts.medvram:
         sd_model.to(devices.device)