[7.x.x Backport] Fix URP backwards compatibility function calls itself (backport 6517).

com.unity.render-pipelines.universal/CHANGELOG.md

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed an issue where Scene objects might be incorrectly affected by 2D Lights from a previous Sorting Layer.
 - Fixed an issue where errors would appear in the Console when entering Play Mode with a 2D Light selected in the Hierarchy. [Case 1226918](https://issuetracker.unity3d.com/issues/errors-appear-in-the-console-when-global-2d-light-is-selected-in-hierarchy)
 - Fixed an issue with shadows not being correctly calculated in some shaders.
+- Fixed invalid implementation of one function in LWRP -> URP backward compatibility support.
 
 ## [7.3.0] - 2020-03-11
 

com.unity.render-pipelines.universal/Shaders/BakedLitMetaPass.hlsl

@@ -46,7 +46,7 @@ Varyings LightweightVertexMeta(Attributes input)
 
 half4 LightweightFragmentMetaBakedLit(Varyings input) : SV_Target
 {
-    return LightweightFragmentMetaBakedLit(input);
+    return UniversalFragmentMetaBakedLit(input);
 }
 
 #endif