I've uploaded 0.12.10-28 (for Diablo and Fremantle).

This fixes the issue reported where the application exits directly from the book info screen. This was caused by the changes I'd put in to prevent reloading a book if it's reopened from the library. Fixing the issue required only a minor change, but pointed out a more significant issue. As this code is also used from the book info screen, additional checks needed to be added in order to reload the book if any critical changes have been made (i.e. language/encoding). This new version handles this, avoiding the bulk of the reloading work in the normal case, but doing a full reload when required.

The source code changes can be downloaded from here.