Expected behavior

Timber::get_post() on a non-existent post ID should return null (like the native WordPress get_post() function) or at least some kind of falsey value to allow easy conditionals.

Actual behavior

A less-than-useful, mostly empty Timber\Post object is returned. For example:

>>> Timber::get_post('1312312');
=> Timber\Post {#1461
     +ImageClass: "Timber\Image",
     +PostClass: "Timber\Post",
     +TermClass: "Timber\Term",
     +object_type: "post",
     +class: "",
     +id: null,
     +ID: "1312312",
     +post_author: null,
     +post_content: null,
     +post_date: null,
     +post_excerpt: null,
     +post_parent: null,
     +post_status: null,
     +post_title: null,
     +post_type: null,
     +slug: null,
   }

Steps to reproduce behavior

Call Timber::get_post() on a nonexistent post ID. It does seem to check if the value is numeric -- a non-numeric string returns null.

What version of WordPress, PHP and Timber are you using?

WordPress 4.8, PHP 5.6, Timber 1.3.2

How did you install Timber? (for example, from GitHub, Composer/Packagist, WP.org?)

Installed using Composer