I have this link right here which I got on the restore button from versions in article manager. I was wondering on what specific task was loadhistory, since I cannot find it on com_content/controllers/article.php :
/BDES3/administrator/index.php?option=com_content&task=article.loadhistory
Sorry if this seems noobish, I just want to know the flow in the article versioning of Article Manager wherein I am able to select a previous version of the article and then restore it to make it the current article in the edit form, as well as update the com_content table for the current restored article.