obnoxxx

By adding one simple line to the config file  a  github repo's local clone, it is possible to fetch pull requests(PRs) as branches, which can be very convenient for reviewers for local testing of PRs and trying to help solve issues.

conceptually, one adds this line to the section `[ remote "origin"]` og `.git/config` in the checkout dir:

```ini

+refs/pull/*/head:refs/remotes/origin/pr/*
 
 ```