Allow Custom Post Type Archives as Front Page in Reading Settings.

[drewcovi]

As support for custom post types has matured, one really amazing feature that could use some consideration is the ability to select a custom post type archive as the homepage.

Currently, the only way to do this involves intercepting the query and forcing a search for the custom post type. Although this will ultimately pull from the correct archive template, there will be a discrepancy between the current page id and the selected front page id.

[SergeyBiryukov]

Duplicate of #19958.