Merge "Extend job list when inheriting jobs" into feature/zuulv3
diff --git a/zuul/model.py b/zuul/model.py
index bfd4d76..30bcb9b 100644
--- a/zuul/model.py
+++ b/zuul/model.py
@@ -929,7 +929,7 @@
     def inheritFrom(self, other):
         for jobname, jobs in other.jobs.items():
             if jobname in self.jobs:
-                self.jobs[jobname].append(jobs)
+                self.jobs[jobname].extend(jobs)
             else:
                 self.jobs[jobname] = jobs