Lucene.Net.Util.Events.TestPubSubEvent::CanAddSubscriptionWhileEventIsFiringNonGeneric(): Added [Ignore] attribute, as this only applies prior to .NET Standard 2.1 and was an inherited problem from Prism.Core. (#1107)

Author: NightOwl888

src/Lucene.Net.Tests/Support/Util/Events/TestPubSubEvent.cs

@@ -436,7 +436,7 @@ public async Task ShouldNotExecuteOnGarbageCollectedFilterReferenceWhenNotKeepAl
         }
 
         [Test]
-        [Ignore("This test has been flakey since it was brought over from Prism")]
+        [Ignore("This test has been flakey since it was brought over from Prism (see https://github.com/apache/lucenenet/issues/998#issuecomment-2438994483)")]
         public void CanAddSubscriptionWhileEventIsFiring()
         {
             var PubSubEvent = new TestablePubSubEvent<string>();
@@ -459,6 +459,7 @@ public void CanAddSubscriptionWhileEventIsFiring()
         }
 
         [Test]
+        [Ignore("This test has been flakey since it was brought over from Prism (see https://github.com/apache/lucenenet/issues/998#issuecomment-2438994483)")]
         public void CanAddSubscriptionWhileEventIsFiringNonGeneric()
         {
             var pubSubEvent = new TestablePubSubEvent();
@@ -710,4 +711,4 @@ public bool FilterString(string arg)
     }
 }
 
-#endif
+#endif