only allow redirect_chain attribute in response when client sets the follow flag

[hoefling]

Signed-off-by: Oleg Hoefling oleg.hoefling@ionos.com

I have made things!

The redirect_chain attribute was added in #1124. At runtime, the response only has this attribute set when the request was made with follow=True:

In [1]: from django.test import Client

In [2]: c = Client()

In [3]: c.get('/spam', follow=True).redirect_chain
Not Found: /spam
2022-11-12 15:42:28 [WARNING ] django.request :: Not Found: /spam
Out[3]: []

In [4]: c.get('/spam', follow=False).redirect_chain
Not Found: /spam
2022-11-12 15:42:33 [WARNING ] django.request :: Not Found: /spam
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Input In [4], in <cell line: 1>()
----> 1 c.get('/spam', follow=False).redirect_chain

AttributeError: 'HttpResponseNotFound' object has no attribute 'redirect_chain'

This PR replicates this behaviour.

Related issues

No issue

[sobolevn]

Thanks, looks like a good idea!