Population: no_linked_issue counted against the real task_from value

eval/aidev_population.py

@@ -46,7 +46,7 @@ def summarize(rows: list) -> dict:
             "most_threads_on_one_pull_request": max((r["n"] for r in ok), default=0),
             "by_agent": by("agent"), "by_state": by("state"), "by_task": by("task_from"),
             "extras_by_kind": dict(collections.Counter(k for r in ok for k in r["kinds"])),
-            "no_linked_issue": sum(1 for r in ok if r["task_from"] != "issue")}
+            "no_linked_issue": sum(1 for r in ok if r["task_from"] != "linked_issue")}
 
 
 def chunks(ids: list, size: int):