Fixed HDRP camera debug panel rendering foldout. (#7043)

Author: JulienIgnace-Unity

com.unity.render-pipelines.core/Editor/Debugging/DebugUIDrawer.Builtins.cs

@@ -294,7 +294,7 @@ public sealed class DebugUIDrawerHistoryEnumField : DebugUIDrawer
         public override bool OnGUI(DebugUI.Widget widget, DebugState state)
         {
             var w = Cast<DebugUI.HistoryEnumField>(widget);
-            var s = Cast<DebugStateInt>(state);
+            var s = Cast<DebugStateEnum>(state);
 
             if (w.indexes == null)
                 w.InitIndexes();

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -42,6 +42,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed RTGI potentially reading from outside the half res pixels due to missing last pixel during the upscale pass (case 1400310).
 - Fixed various issues with render graph viewer when entering playmode.
 - Fixed issue with Final Image Histogram displaying a flat histogram on certain GPUs and APIs.
+- Fixed HDRP camera debug panel rendering foldout.
 
 ## [12.1.4] - 2021-12-07