Fix v2 config clobbering

 * When pagebundle is set in v2 of the api, it altered a parsoid config
   that was shared across requests. Here we copy that setting to the
   environment where it's safe to be manipulated.

Change-Id: Ifa2d36accb20c8a5218f465a625184d12ba80a44
Merge "Fix v2 config clobbering"