Fix fp8 ops staying enabled.

comfy/supported_models_base.py

@@ -72,6 +72,7 @@ def __init__(self, unet_config):
         self.unet_config = unet_config.copy()
         self.sampling_settings = self.sampling_settings.copy()
         self.latent_format = self.latent_format()
+        self.optimizations = self.optimizations.copy()
         for x in self.unet_extra_config:
             self.unet_config[x] = self.unet_extra_config[x]