Misuse of "page_on_front" option in the whole code ?

Hi,

The option “page_on_front” will, in some cases, return an ID even if the front page has been set to show the latest posts:
it will return the ID of the page that was set BEFORE switching to latest posts.
Just to make it clear: for example you set the front page to page ID 2
Then you set the front page to show the latest posts
=> option “page_on_front” will still return ID 2, even if no page is displayed on front

For example, in the plugin’s Settings page, the setting “When using static front page, redirect the language page (example: http://localhost/example/en/) to the front page in the right language” will not be disabled EVEN in the case I chose the front page to display the latest posts:
The test get_option('page_on_front') should be replaced by get_option('show_on_front') == 'page'

If i’m not wrong, the whole code should be reviewed.
But I installed WordPress some days ago, so don’t take for granted all what I say:)

http://wordpress.org/extend/plugins/polylang/