Figure out how to handle switching from standalone to attached.

We're using feeds to allow users to import their blog via RSS.

We've got everything working well, however there's a strange bug(?) with the input field; it's pre-filling it with the last URL to have been imported.

Obviously this doesn't look great for users and in some cases the feeds are private full body feeds that users have created to import the full content of their blogs, which isn't great if they're exposed.

Is this a bug, or is there a configuration option for it that we've missed?

Thanks