What you said is true. However, in another case, I selected my home page "Right Sidebar and Homepage Heading", then clicked "Create Draft". I went into drafts to edit the new draft, made a small change to text, then clicked "Save" (not "Update Original). While the View button on the original page shows mysite.com/index.php, the View button in the draft ALSO shows that url, displaying the original content. I tried this on the homepage as well as "about us" and others. The VIEW button for the single pages shows the originals, not the drafts. Maybe drafts don't work on single pages?
???
???