Name '__1' / '__2' must not begin with '__', which is reserved by GraphQL introspection error bug

[wimble3]

First error enterance: #1533

{ "errors": [ { "message": "Name '__1' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__2' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__1' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__2' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__1' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__2' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__1' must not begin with '__', which is reserved by GraphQL introspection." }, { "message": "Name '__2' must not begin with '__', which is reserved by GraphQL introspection." } ] }

Error is still living now, for example:

class MyModel(models.Model):
    LESS = "<"
    MORE = ">"
    EQUAL = "="
    OPERATORS = (
        (LESS, "less"),
        (MORE, "more"),
        (EQUAL, "equal"),
    )

    operator = models.CharField(choices=OPERATORS)

Maybe u should not create choices like this, but anyway: Error must be informative
If u want i can try to PR error fix.