ignore ambiguities on auto sync points

Author: hymm

crates/bevy_ecs/src/schedule/schedule.rs

@@ -1033,6 +1033,10 @@ impl ScheduleGraph {
             ))));
         self.system_conditions.push(Vec::new());
 
+        // ignore ambiguities with auto sync points
+        // They aren't under user control, so no one should know or care.
+        self.ambiguous_with_all.insert(id);
+
         id
     }