nextpage does now work with a static front page

[nickmomrik]

Using <!--nextpage--> with a static front page does not work.

When using custom permalinks, you get a 404. When using the default permalinks, the URL for page 2 is &page=2.

Tested with r13437

[nacin]

A fix is probably related to #12047.

[dd32]

I can see 3 options here:

1. Use ?page=xxx for the front page instead of <permalink>/xxx/
2. Reuse /page/xxx/ for Nextpaging instead of Posts paging on front page
3. Use /xxx/ with a few caveouts:
   • Could only be used on sites without a numeric as their first token in the permastruct
     • Could be used, however,the maximum number of pages would be 1 less than the minimum length of the token, ie. years would max it to 3 digits of pages, Month or Post ID as the first would reduce it to a max of 0 pages working correctly.

I'm curious as to what everyone else would expect?

I've got all 3 options working locally, Just need to determine which is the winning solution.

Personally, I'd prefer #3, but it's way too fragile. #2 feel like a good compromise, since the rule already exists and isnt in use. #1 is it, if #2 isnt acceptable - But it feels ugly to have to use a query var for it.

[dd32]

(In [13494]) Re-use /page/xx/ for Post Paging on Page_on_front. Few fixes related to paging on front page. Fixes #12391

[dd32]

(In [14341]) Fix custom WP_Queries when using page_on_front. Props aaroncampbell. See #12391 (Which caused it), Fixes #12047

[dd32]

(In [14445]) Handle $wp_query->query being a string in r14341. See #12391, #12047. Fixes #13241