Patch fix for #21430 : Exception to be raised when unpickiling QuerySet across unsupported django version

[Prasoon Shukla]

Hi.

I'm new to the django community. I added a PR[0] for issue 21430 a couple of weeks back but there has been no response on the PR since (until recently when someone gave the patch an LGTM). So, can someone review it please.

Thanks.

[0] https://github.com/django/django/pull/2082

[Prasoon Shukla]

Hi again.

Just a heads up that the suggested changes have been made and the PR [0] needs a review.

It appears that @akaarial (who suggested the changes) is not getting mails from GitHub. So, I'm resorting to commenting here for requesting a review.

Thanks.

[0] https://github.com/django/django/pull/2082