Query Dict issue in serialisers

query-dict-issue.py

from rest_framework import serializers


class T(serializers.Serializer):
    a = serializers.BooleanField()
    b = serializers.BooleanField(required=False)
    c = serializers.BooleanField(required=False)

    d = serializers.CharField()

    def __init__(self, data, **kwargs):
        super().__init__(instance=None, data=data, **kwargs)

        if data.get('a'):
            self.fields['b'].required = True
        else:
            self.fields['c'].required = True


            
from django.http import QueryDict
d = QueryDict('', mutable=True)
d.update({'a': 1, 'b': 1, 'd': 1})
x = T(data=d)
x.is_valid()
x.validated_data
# expected - OrderedDict([('a', True), ('b', True), ('d', '1')])
# actual - OrderedDict([('a', True), ('b', True), ('c', False), ('d', '1')])