change Query.Model to a pointer

model.go

@@ -135,7 +135,7 @@ func (m *Model) Find(query interface{}, opts ...*options.FindOptions) (*Query, e
 	qqv := reflect.New(qqt)
 	qqv.Elem().Set(reflect.MakeSlice(qqt, 0, 0))
 	qq := &Query{
-		Model:      *m,
+		Model:      m,
 		Collection: m.getColl(),
 		doc:        qqv.Interface(),
 		Op:         OP_FIND_ALL,
@@ -199,7 +199,7 @@ func (m *Model) FindOne(query interface{}, options ...*options.FindOneOptions) (
 		rawDoc:     raw,
 		doc:        v.Elem().Interface(),
 		Op:         OP_FIND_ONE,
-		Model:      *m,
+		Model:      m,
 	}
 	qq.rawDoc = raw
 	err = rip.Decode(qq.doc)

query.go

@@ -20,7 +20,7 @@ type Query struct {
 	// the operation from which this query stems
 	Op string
 	// the model instance associated with this query
-	Model  Model
+	Model  *Model
 	done   bool
 	rawDoc any
 	doc    any