AND clause used instead of OR while filtering

[belavaishali]

Note: for support questions, please use stackoverflow. This repository's issues are reserved for feature requests and bug reports.

• What is the current behavior?
  So currently on using a Filterset class graphene-django filter is used, which uses AND instead of OR for lookup "IN"

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via
  a github repo, https://repl.it or similar (you can use this template as a starting point: https://repl.it/@jkimbo/Graphene-Django-Example).

class ExampleFilterSet(FilterSet):    
    label__name__in = StringInFilter(method="filter_labels")

    class Meta:
        model = Example
        fields = {"users__email": ["in"]}

Ideally, here it should have been OR query - where users__email in ['[email protected]' , '[email protected]'] but on debugging it simply empties the clone object and returns empty qs.

It was working well with django3.1 and graphene-django 2.9.9

• What is the expected behavior?
  The OR clause should be there in the ultimate sql query formed

• What is the motivation / use case for changing the behavior?
  carry the normal functioning

• Please tell us about your environment:

  • Version: 3.1.2
  • Platform: macos

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix, links for us to have context, eg. stackoverflow)