From dd6e280ae4219096df6946df16ea854bf3ab69f3 Mon Sep 17 00:00:00 2001
From: Ken Simpson <ksimpson@mailchannels.com>
Date: Fri, 3 May 2024 15:36:22 -0700
Subject: [PATCH] Fixed issue #49 upstream by cloning the model before patching
 it

---
 brushnet_nodes.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/brushnet_nodes.py b/brushnet_nodes.py
index d8702cc..2645daf 100644
--- a/brushnet_nodes.py
+++ b/brushnet_nodes.py
@@ -169,6 +169,10 @@ class BrushNet:
 
     def model_update(self, model, vae, image, mask, brushnet, positive, negative, scale, start_at, end_at):
 
+        # Make a copy of the model so that we're not patching it everywhere in
+        # the workflow.
+        model = model.clone()
+
         is_SDXL = False
         if isinstance(model.model.model_config, comfy.supported_models.SD15):
             print('Base model type: SD1.5')