Radiant page.edit.published_date? setting issue

[fitogordo]

Thanks for this great extension! We have been using it extensively.

However, we have just run into this issue which seems to be a biggie if you have to update the published date for blog posts routinely, and want to use Radiant's built-in mechanism for doing so:

Setting the Radiant configuration page.edit.published_date? to true (as described here: http://wiki.github.com/radiant/radiant/change-a-pages-publication-date), causes pages to become uneditable.