From eebf49592ad2c0933e58b06a098b92e48d47e4fe Mon Sep 17 00:00:00 2001
From: cluder <1590330+cluder@users.noreply.github.com>
Date: Wed, 9 Nov 2022 07:17:09 +0100
Subject: [PATCH] restore #4035 behavior

- if checkpoint cache is set to 1, keep 2 models in cache (current +1 more)
---
 modules/sd_models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/sd_models.py b/modules/sd_models.py
index 720c2a9..80addf0 100644
--- a/modules/sd_models.py
+++ b/modules/sd_models.py
@@ -213,7 +213,7 @@ def load_model_weights(model, checkpoint_info, vae_file="auto"):
 
     # clean up cache if limit is reached
     if cache_enabled:
-        while len(checkpoints_loaded) > shared.opts.sd_checkpoint_cache:
+        while len(checkpoints_loaded) > shared.opts.sd_checkpoint_cache + 1: # we need to count the current model
             checkpoints_loaded.popitem(last=False)  # LRU
 
     model.sd_model_hash = sd_model_hash