Links self-replicating
 

When I include a hyperlink, either on an outline line or in its note, I find later that the link has become 5 - 50 identical links strung together in a string. How can I prevent this? Is there an easy way to undo all the mess that has been created?

It sounds like you're saving as opml instead of the OmniOutliner 3 format. There is a bug in the opml parsing that will duplicate links every time you save and reopen the file if the app is set to auto create attachments from urls.

If you want to keep saving as opml, then you will need to turn on this setting which is general tab of the OmniOutliner preferences. If you save it as the oo3 format instead, then you can leave the setting on. Unfortunately, there's no automatic way to remove all the duplicates.

Any idea when this bug will be fixed? I want to use OmniOutliner as an OPML editor--with the very convenient links feature enabled--and this makes it a non-starter.