Allow an array of sites to be passed to 'sites' in WP_Query; create 3 sites in tests not 2; restore blog in the_post before switching to the next blog; add tests for testing loop tags and querying a subset of sites
Re call setup_postdata after switching the blog
Merge pull request #120 from 10up/feature/sites-subset

Allow an array of sites to be passed to 'sites' in WP_Query