A few days ago I noticed that one post I created received a numerical post ID as its slug even though my permalink strucuture called for date/post name format.
Today, I noticed that when I created a test post, saved it in draft mode and did not create a title, WP created another numerical post slug. The post was not yet published.
In 1.5.3 the behavior was to only create a post slug when the post is saved in Publish mode (I believe that's how it worked). Can anyone tell me why this might be happeneing?