Attributes with accessor are serialized with their raw value and adding the attribute on __appends__ causes internal state issues

[federicoparroni]

Describe the bug
The serialize method modifies the internal __attributes__ dict when an attribute is in __appends__ and has an accessor.
I noticed this bug when I added the attribute to the __appends__ because I wanted that attribute to be serialized using the accessor, otherwise the attribute is serialized using the its raw value. Is there any way to achieve this?

To Reproduce

class User(Model):
    __table__ = 'users'
    __timestamps__ = False
    __hidden__ = [
        'id',
    ]
    __fillable__ = [
        'name',
    ]

    def get_name_attribute(self):
        name = self.get_raw_attribute('name')
        if name is not None:
            return "Mr. " + name.strip()

def __main__():
   user = User.first_or_fail()
   print(user.name)             # correctly prints "Mr. John"
   print(user.serialize())      # correctly prints { "name": "Mr. John" }
   print(user.name)             # wrongly prints "Mr. Mr. John"

Expected behavior
The serialized attribute should be the one returned from the accessor and the internal attribute should not be altered after the serialize call

Desktop (please complete the following information):

• OS: Ubuntu
• Version: 21.04

What database are you using?

• Type: MySQL
• Version: 14.14 Distrib 5.7.30, for Linux (x86_64)
• Masonite ORM 2.6.1

[federicoparroni]

Thank you!