Capture more HDA state transitions in the history panel.

lib/galaxy/jobs/__init__.py

@@ -1072,7 +1072,15 @@ def change_state(self, state, info=False, flush=True, job=None):
             dataset = dataset_assoc.dataset
             if not job_supplied:
                 self.sa_session.refresh(dataset)
-            dataset.raw_set_dataset_state(state)
+            state_changed = dataset.raw_set_dataset_state(state)
+            if state_changed:
+                # Arguably a hack to get state changes to appear in the history panel because
+                # the history panel polls on hda.update_time and ignores hda.dataset.update_time.
+                # For those less pragmatic needing a more theoretically sound reason for the update,
+                # perhaps arguments can be made that the entity that is the HDA
+                # really should be described as updated since its effective state did change and its
+                # RESTful representation in the API does change as a result of the above dataset update.
+                dataset.update()
             if info:
                 dataset.info = info
             self.sa_session.add(dataset)

lib/galaxy/model/__init__.py

@@ -2004,6 +2004,9 @@ def __init__(self, id=None, hid=None, name=None, info=None, blurb=None, peek=Non
         self.parent_id = parent_id
         self.validation_errors = validation_errors
 
+    def update(self):
+        self.update_time = galaxy.model.orm.now.now()
+
     @property
     def ext(self):
         return self.extension