In previous versions of Liferay, it was possible to publish only contents from desired pages. In 6.2, Liferay always publishes all modified content, even if they are on other pages (not selected for the publication). This regression makes the staging environment useless.
1) Enable staging environment for a site with 2 pages with a content on each page
2) Modify both web contents (on each page)
3) Publish to live but select only one page in the options
4) Both content have been published to live (both pages have been changed)