I’ve noticed that Feedly’s view of my own blog doesn’t reflect changes

I’ve noticed that Feedly’s view of my own blog doesn’t reflect changes when I update a recent post. The RSS feed definitely includes the updated content, and new posts do show up in Feedly. I’ve tried changing the pubDate on the items, and that doesn’t seem to make a difference. Is this expected behavior? If so, is there a way to tell Feedly that the content has changed, short of creating an entirely new post?

Note: Comments confirmed that I do, in fact, need a new ID for it. I described a solution in a followup on K2R.