fix missing infotext cased by conda cache

some generation params such as TI hashes or Emphasis is added in sd_hijack / sd_hijack_clip
if conda are fetche from cache sd_hijack_clip will not be executed and it won't have a chance to to add generation params

the generation params will also be missing if in non low-vram mode because the hijack.extra_generation_params was never read after calculate_hr_conds

modules/util.py

@@ -288,3 +288,18 @@ def compare_sha256(file_path: str, hash_prefix: str) -> bool:
         for chunk in iter(lambda: f.read(blksize), b""):
             hash_sha256.update(chunk)
     return hash_sha256.hexdigest().startswith(hash_prefix.strip().lower())
+
+
+class GenerationParamsState:
+    """A custom class used in StableDiffusionModelHijack for assigning extra_generation_params
+    generation_params assigned using this class will work properly with StableDiffusionProcessing.get_conds_with_caching()
+        if assigned directly the generation_params will not be populated if conda cache is used
+
+    Generation_params of this class will be captured (see StableDiffusionModelHijack.capture_generation_params_state) and stored with conda cache, and will be extracted in StableDiffusionProcessing.apply_hijack_generation_params()
+
+    To use this class, create a subclass with a __call__ method that takes extra_generation_params: dict as input
+
+    Example usage: sd_hijack_clip.EmbeddingHashes, sd_hijack_clip.EmphasisMode
+    """
+    def __call__(self, extra_generation_params: dict):
+        raise NotImplementedError