add with_hash to prevent rerenders on default

Author: Mary Hipp

invokeai/app/services/workflow_thumbnails/workflow_thumbnails_base.py

@@ -8,12 +8,12 @@ class WorkflowThumbnailServiceBase(ABC):
     """Base class for workflow thumbnail services"""
 
     @abstractmethod
-    def get_path(self, workflow_id: str) -> Path:
+    def get_path(self, workflow_id: str, with_hash: bool = True) -> Path:
         """Gets the path to a workflow thumbnail"""
         pass
 
     @abstractmethod
-    def get_url(self, workflow_id: str) -> str | None:
+    def get_url(self, workflow_id: str, with_hash: bool = True) -> str | None:
         """Gets the URL of a workflow thumbnail"""
         pass
 

invokeai/app/services/workflow_thumbnails/workflow_thumbnails_disk.py

@@ -41,7 +41,7 @@ def save(self, workflow_id: str, image: PILImageType) -> None:
         except Exception as e:
             raise WorkflowThumbnailFileSaveException from e
 
-    def get_path(self, workflow_id: str) -> Path:
+    def get_path(self, workflow_id: str, with_hash: bool = True) -> Path:
         workflow = self._invoker.services.workflow_records.get(workflow_id).workflow
         if workflow.meta.category is WorkflowCategory.Default:
             default_thumbnails_dir = Path(__file__).parent / Path("default_workflow_thumbnails")
@@ -51,15 +51,16 @@ def get_path(self, workflow_id: str) -> Path:
 
         return path
 
-    def get_url(self, workflow_id: str) -> str | None:
+    def get_url(self, workflow_id: str, with_hash: bool = True) -> str | None:
         path = self.get_path(workflow_id)
         if not self._validate_path(path):
             return
 
         url = self._invoker.services.urls.get_workflow_thumbnail_url(workflow_id)
 
         # The image URL never changes, so we must add random query string to it to prevent caching
-        url += f"?{uuid_string()}"
+        if with_hash:
+            url += f"?{uuid_string()}"
 
         return url