Serializer Field: default=0 gets ignored

[acu192]

Because of this line:

django-rest-framework-mongoengine/rest_framework_mongoengine/utils.py

Line 147 in 2ab11b3

if model_field.default and not isinstance(model_field, me_fields.ComplexBaseField):

If default is "falsy" (like if you do default=0 on an IntField) then the default is ignored.

[acu192]

A workaround is to do default=lambda: 0 on your ME fields, instead of just the simple default=0.