Django migrations adds constraint before adding field

[Raphael Beekmann]

Hello,

I have a model, already created through previous migrations, and in a new migration I added a new field with a UniqueConstraint.
The model looks like this (the new field is 'type') :

class Model(models.Model):
    name = models.CharField()
    date = models.DateField()
    type = models.ForeignKey(OtherModel)

    class Meta:
        constraints = (
            models.UniqueConstraint(fields=('date', 'type'), name='unique_date_for_type'),
        )

When I run the makemigrations script it adds first the constraint and then the new field. That occurs an error when executing the migration :

django.core.exceptions.FieldDoesNotExist: DailyTask has no field named 'type'

I have to manually move the adds of the constraint before the adds of the new field in the migration file to make it work.