IP address session check

I see the (very) recent return of IP address check per session in https://git.tt-rss.org/git/tt-rss/commit/7d53c2b501cbc0e48f90c154b2f901fef08fbd33.
I know that we can opt-out from this, but in the past, this disconnects me more than once, just because I was switching from IPv6 to IPv4 (or reverse). Of course, it is completely unwanted, this is just how browsers work: they choose the fastest.
Maybe the class of the address should be check also? Or the ip_address field is automatically filled by PHP?

it’s a server variable, it’s automatically filled by whatever httpd you’re running, i think.

OK. I’ll see how it behaves then.