fix event priority sorting

docs/release-notes.md

@@ -7,6 +7,9 @@
   * Migrated to Harmony 2.0 (see [_migrate to Harmony 2.0_](https://stardewvalleywiki.com/Modding:Migrate_to_Harmony_2.0) for more info).
 -->
 
+## Upcoming release
+* Fixed event priority sorting.
+
 ## 3.6
 Released 20 June 2020 for Stardew Valley 1.4.1 or later.
 

src/SMAPI/Framework/Events/ManagedEventHandler.cs

@@ -47,7 +47,7 @@ namespace StardewModdingAPI.Framework.Events
             if (!(obj is ManagedEventHandler<TEventArgs> other))
                 throw new ArgumentException("Can't compare to an unrelated object type.");
 
-            int priorityCompare = this.Priority.CompareTo(other.Priority);
+            int priorityCompare = -this.Priority.CompareTo(other.Priority); // higher value = sort first
             return priorityCompare != 0
                 ? priorityCompare
                 : this.RegistrationOrder.CompareTo(other.RegistrationOrder);