fix sorting method for LoRA keys

- support _out_0
- sort _in before _out
- avoid false positives by only considering suffixes

src/refiners/foundationals/latent_diffusion/lora.py

@@ -44,7 +44,7 @@ def add_loras(
         loras = {key: loras[key] for key in sorted(loras.keys(), key=SDLoraManager.sort_keys)}
 
         # if no key contains "unet" or "text", assume all keys are for the unet
-        if all(["unet" not in key and "text" not in key for key in loras.keys()]):
+        if all("unet" not in key and "text" not in key for key in loras.keys()):
             loras = {f"unet_{key}": value for key, value in loras.items()}
 
         self.add_loras_to_unet(loras)
@@ -141,15 +141,10 @@ def pad(input: str, /, padding_length: int = 2) -> str:
 
     @staticmethod
     def sort_keys(key: str, /) -> tuple[str, int]:
-        # out0 happens sometimes as an alias for out ; this dict might not be exhaustive
-        key_char_order = {"q": 1, "k": 2, "v": 3, "out": 4, "out0": 4}
-
-        for i, s in enumerate(key.split("_")):
-            if s in key_char_order:
-                prefix = SDLoraManager.pad("_".join(key.split("_")[:i]))
-                return (prefix, key_char_order[s])
-
-        return (SDLoraManager.pad(key), 5)
+        # this dict might not be exhaustive
+        key_char_order = {"_q": 1, "_k": 2, "_v": 3, "_in": 3, "_out": 4, "_out0": 4, "_out_0": 4}
+        (sfx, score) = next(((k, v) for k, v in key_char_order.items() if key.endswith(k)), ("", 5))
+        return (SDLoraManager.pad(key.removesuffix(sfx)), score)
 
     @staticmethod
     def auto_attach(