I don't know if I'm using TextMate in a strange way, but: I have an HTML blogging project open with a couple of root folders, and each of those folders have one sub-folder for archive purposes. Every now and then I like to archive posts from the main folder into the sub-folder, but when I do this the sub-folder unfurls - and I really don't want this to happen. Is there any way to stop it? A preference I can check somewhere? Why does it open in the first place; is this behavior useful to some other workflow or language?

Thanks for any thoughts
- david