From 9da2ba012b97c3caad3c958510f2f94d9d5b9926 Mon Sep 17 00:00:00 2001
From: F K <54195004+fredjk-gh@users.noreply.github.com>
Date: Sun, 18 Feb 2024 15:43:53 -0500
Subject: [PATCH] [Framework] Make the new CoalescingId event arg nullable
 (#143)

While testing, I discovered that plugins that don't yet support sending the Coalescing ID were not mixing well because the default value of the ID is 0 -- which is also a valid body id. If the default is null, receivers can detect the absent value and apply a sensible default (ie. group them where it makes sense).
---
 ObservatoryFramework/EventArgs.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ObservatoryFramework/EventArgs.cs b/ObservatoryFramework/EventArgs.cs
index de638a8..54a3e23 100644
--- a/ObservatoryFramework/EventArgs.cs
+++ b/ObservatoryFramework/EventArgs.cs
@@ -73,7 +73,7 @@ namespace Observatory.Framework
         /// <summary>
         /// A value which allows grouping of notifications together. For example, values &gt;= 0 &lt;= 1000 could be system body IDs, -1 is the system, anything else is arbitrary.
         /// </summary>
-        public int CoalescingId;
+        public int? CoalescingId;
     }
 
     /// <summary>