kennethreitz/requests — pull request #1200 by gazpachoking (2013-02-16 06:00:17+00:00)
Title: Make sure session cookies do not overwrite explicit request cookies

Cookies from a session were overwriting cookies explicitly defined in a request with that session. A couple minor changes as well:
- Implement RequestsCookieJar.copy
- Use RequestsCookieJar.update when merging cookiejars in a couple places