QOL context change

Author: atharvas

src/datasmith/docker/context.py

@@ -654,8 +654,7 @@ def deserialize(cls, payload: str) -> ContextRegistry:
 
         # Ensure canonical default exists
         default_task_canonical = Task(owner="default", repo="default", sha=None, tag="pkg")
-        if default_task_canonical not in registry:
-            registry[default_task_canonical] = DockerContext()
+        registry[default_task_canonical] = DockerContext()
 
         # Normalize any accidentally stored 'env' keys to canonical 'pkg'
         # (in case old payloads had per-tag entries)