Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: AndriySvyryd

src/EFCore.Design/Scaffolding/Internal/CSharpRuntimeModelCodeGenerator.cs

@@ -1769,9 +1769,17 @@ private void RegisterPrivateAccessors(
         Dictionary<Type, HashSet<MemberInfo>> unsafeAccessorTypes,
         ref Dictionary<MemberInfo, QualifiedName>? memberAccessReplacements)
     {
-        var member = property.GetMemberInfo(forMaterialization, forSet) ?? throw new InvalidOperationException(
+        MemberInfo? member;
+        if (!property.TryGetMemberInfo(forMaterialization, forSet, out member, out _))
+        {
+            throw new InvalidOperationException(
                 DesignStrings.CompiledModelBackingFieldNotFound(property.DeclaringType.ShortName(), property.Name));
+        }
 
+        if (member == null)
+        {
+            return null;
+        }
         switch (member)
         {
             case FieldInfo field: