Why Laravel Eloquent wasChanged and getChanges functions shows wrong updated fields

I'm trying to use wasChanged and getChanges functions to determine updated fields of updateOrCreate function.

Previously it was working great but after adding a boolean field to updateOrCreate, wasChanged returns true and getChanges returns the field as updated when it's not changed.

I tried to cast value to boolean but nothing resolved.

What might be the reason for this and how can I solve it?

via Chebli Mohamed