After pipeline lifecycle changes in the engine now we can set the pipeline tag upon asset creation and disposal.

Assets/ScriptableRenderPipeline/LightweightPipeline/LightweightPipeline.cs

             BuildShadowSettings();
             m_ShadowMapProperty = Shader.PropertyToID("_ShadowMap");
             m_ShadowMapRTID = new RenderTargetIdentifier(m_ShadowMapProperty);
+            Shader.globalRenderPipeline = "LightweightPipeline";
+        }
+
+        public override void Dispose()
+        {
+            Shader.globalRenderPipeline = "";
-            var prevPipe = Shader.globalRenderPipeline;
-            Shader.globalRenderPipeline = "LightweightPipeline";
             base.Render(context, cameras);
 
             foreach (Camera camera in cameras)