fix: removes support to collection in apply to

Author: mrdevrobot

ProjectR.Sample/Domain/Domain.cs

@@ -4,12 +4,12 @@
 
 namespace ProjectR.Sample.Domain
 {
-    public abstract class BaseEntity
+    public abstract class BaseEntity<TId>
     {
-        public Guid Id { get; set; }
+        public TId Id { get; set; }
     }
 
-    public class Category : BaseEntity
+    public class Category : BaseEntity<Guid>
     {
         public string Name { get; set; }
 

ProjectR/Builders/CodeBuilder.cs

@@ -241,8 +241,11 @@ private void GenerateMappingInstructions(string sourceVar, string? destVar, Mapp
                         assignment = $"{nested.Destination.Name} = this._{GetFieldName(nested.Mapper)}.{nestedMethod}({sourceVar}.{nested.Source.Name})";
                         break;
                     case CollectionPropertyMapping collection:
-                        var elementMethod = GetNestedMethodName(GetCollectionElementType(collection.Source.Type), GetCollectionElementType(collection.Destination.Type), isApplyTo);
-                        assignment = $"{collection.Destination.Name} = {sourceVar}.{collection.Source.Name}?.Select(x => this._{GetFieldName(collection.ElementMapper)}.{elementMethod}(x)).ToList()";
+                        if (!isApplyTo)
+                        {
+                            var elementMethod = GetNestedMethodName(GetCollectionElementType(collection.Source.Type), GetCollectionElementType(collection.Destination.Type), isApplyTo);
+                            assignment = $"{collection.Destination.Name} = {sourceVar}.{collection.Source.Name}?.Select(x => this._{GetFieldName(collection.ElementMapper)}.{elementMethod}(x)).ToList()";
+                        }
                         break;
                 }
                 if (!string.IsNullOrEmpty(assignment))