BUG. Git config pager when --edit

Hello!

I've found an annoying bug. When I wanna review my config I run $ git config --list

When I wanna edit config I run $ git config --edit [--global]

As far as my config is large enough to be paged I set pager.config=less
setting. But since that moment when I run
$ git config --edit
I get 
Vim: Warning: Output is not to a terminal
And some messed config output

The same happens if to run $ vim .git/config | less

Can anybody skilled enough fix it? :)