Code simplified.

backend/src/Squidex.Infrastructure/Queries/OData/ConstantWithTypeVisitor.cs

@@ -47,6 +47,11 @@ namespace Squidex.Infrastructure.Queries.OData
                 return ClrValue.Null;
             }
 
+            if (nodeIn.TypeReference == null)
+            {
+                throw new NotSupportedException();
+            }
+
             if (nodeIn.TypeReference.Definition == BooleanType)
             {
                 return bool.Parse(value.ToString()!);
@@ -62,11 +67,6 @@ namespace Squidex.Infrastructure.Queries.OData
                 return ParseInstant(value);
             }
 
-            if (ConstantVisitor.Visit(nodeIn.Source) == null)
-            {
-                return ClrValue.Null;
-            }
-
             throw new NotSupportedException();
         }
 
@@ -122,8 +122,11 @@ namespace Squidex.Infrastructure.Queries.OData
                 return ClrValue.Null;
             }
 
-            if (nodeIn.TypeReference != null)
+            if (nodeIn.TypeReference == null)
             {
+                throw new NotSupportedException();
+            }
+
             if (nodeIn.TypeReference.Definition == DateTimeType || nodeIn.TypeReference.Definition == DateType)
             {
                 return ParseInstant(nodeIn.Value);
@@ -163,7 +166,6 @@ namespace Squidex.Infrastructure.Queries.OData
             {
                 return (string)nodeIn.Value;
             }
-            }
 
             throw new NotSupportedException();
         }