TMSS-2809: typo

SAS/TMSS/backend/services/scheduling/lib/dynamic_scheduling.py

@@ -761,8 +761,8 @@ class Scheduler:
             if rescored_unit:
                 lower_scoring_units = [ssu for ssu in scored_scheduling_units if ssu.weighted_score < rescored_unit.weighted_score]
                 for blocking_placed_unit in lower_scoring_units:
-                    blocking_placed_unit.placed = False
-                    blocking_placed_unit.save()
+                    blocking_placed_unit.scheduling_unit.placed = False
+                    blocking_placed_unit.scheduling_unit.save()
 
         # we tried to make room for our candidate
         # place it if no more blocking other units, else just assign the new starttime