Prose is mucking up YAML front-matter

Every time I try to change one of my posts now, prose.io does three things, all of which cause trouble:

1. published is coerced into a list.
2. Prose’s publish button doesn’t change published to true, but rather adds "false" (with the quotes) to the newly-created list.
3. The dates go from whatever they were before to {}.

Here is the “Revew your changes” view when I click the publish button on an unpublished post with no body, and then click the save button:

http://cl.ly/image/3m2R3E3K2k2C

Here’s the actual post:

https://raw.github.com/crucornell/crucornell.github.com/master/_posts/2012-08-15-blog.md

I actually don’t have to publish posts to get published coerced into a list and the date mangled - if I just open it up and click save it will do it.

Is anyone else getting this?

[jaranta]

Also experiencing this. Especially the date-mangling was problematic, since an invalid date will stop a previously working page from building in Jekyll.

[habi]

Any update on this? Prose.io still removes the date when I edit a post, which then leads to a build error (…does not have a valid date in the YAML front matter). This is quite annoying…