WTF is going on?

Posts on my friends page are currently appearing is this order (friends locked posts removed):

Mar. 20th, 2006 @ 12:14 am Nameless thing - puddingcat
Mar. 19th, 2006 @ 10:22 pm Vaginas - gleet
Mar. 19th, 2006 @ 09:34 pm Earth Day Logos - sharikkamur
Mar. 19th, 2006 @ 01:07 pm Nameless thing - who_daily
Mar. 19th, 2006 @ 08:52 pm Futurama season 5! - lonemagpie
Mar. 19th, 2006 @ 06:58 pm LOL - again - sharikkamur
Mar. 19th, 2006 @ 04:56 pm It figures... - narahttbbs
Mar. 19th, 2006 @ 03:56 pm Nameless thing - littlebun
Mar. 19th, 2006 @ 11:12 pm And... - pink_weasel

Look at the times, what are the who_daily and pink_weasel posts doing where they are?

The change in URLs from livejournal.com/users/username to username.livejournal.com has caused changes in all the items in the journal RSS feeds (at the least - the URLs to the journal entry).

Which means that my feedreader (Opera) has decided that these are different items and hence lists near duplicates all of the last 25 items in every feed. I thought 240 new items overnight was a bit much.

Are people using feedreaders other than Opera to subscribe to RSS feeds from LJ experiencing the same or is this an Opera shortcoming? I know that some feedreaders can mark edits when items are changed post-publication, do they do that in this case?