Image-Size list shows custom image sizes twice

[grappler]

Bug Report

• Yes, I reviewed the contribution guidelines.
• Yes, more specifically, I reviewed the guidelines on how to write clear bug reports.

Describe the current, buggy behavior

The custom image sizes are listed twice. Once with the correct information and once with the height and width missing.

+-----------------------+-------+--------+------+-------+
| name                  | width | height | crop | ratio |
+-----------------------+-------+--------+------+-------+
| full                  |       |        | N/A  | N/A   |
| large                 | 1024  | 1024   | soft | N/A   |
| medium_large          | 768   | 0      | soft | N/A   |
| medium                | 300   | 300    | soft | N/A   |
| mini-profile-thumb    | 220   | 220    | soft | N/A   |
| thumbnail             | 150   | 150    | hard | 1:1   |
| mini-navigation-thumb | 150   | 20     | soft | N/A   |
| edit-screen-thumb     | 120   | 120    | soft | N/A   |
| mini-frontpage-thumb  | 100   | 50     | soft | N/A   |
| edit-screen-thumb     | 0     | 0      | soft | N/A   |
| mini-profile-thumb    | 0     | 0      | soft | N/A   |
| mini-navigation-thumb | 0     | 0      | soft | N/A   |
| mini-frontpage-thumb  | 0     | 0      | soft | N/A   |
+-----------------------+-------+--------+------+-------+

Describe how other contributors can replicate this bug

• Register a custom image size add_image_size( 'mini-profile-thumb', 220, 220 );
• wp media image-size
• See results

Describe what you would expect as the correct outcome

I expect the result to look as follows

+-----------------------+-------+--------+------+-------+
| name                  | width | height | crop | ratio |
+-----------------------+-------+--------+------+-------+
| full                  |       |        | N/A  | N/A   |
| large                 | 1024  | 1024   | soft | N/A   |
| medium_large          | 768   | 0      | soft | N/A   |
| medium                | 300   | 300    | soft | N/A   |
| mini-profile-thumb    | 220   | 220    | soft | N/A   |
| thumbnail             | 150   | 150    | hard | 1:1   |
| mini-navigation-thumb | 150   | 20     | soft | N/A   |
| edit-screen-thumb     | 120   | 120    | soft | N/A   |
| mini-frontpage-thumb  | 100   | 50     | soft | N/A   |
+-----------------------+-------+--------+------+-------+

Let us know what environment you are running this on

OS:	Linux 3.10.0-1062.4.1.el7.x86_64 #1 SMP Wed Sep 25 09:42:57 EDT 2019 x86_64
Shell:
PHP binary:	/usr/local/bin/php
PHP version:	7.1.32
php.ini used:	/usr/local/etc/php/php.ini
WP-CLI root dir:	phar://wp-cli.phar/vendor/wp-cli/wp-cli
WP-CLI vendor dir:	phar://wp-cli.phar/vendor
WP_CLI phar path:	/app
WP-CLI packages dir:
WP-CLI global config:
WP-CLI project config:	/app/wp-cli.yml
WP-CLI version:	2.3.0
WordPress version: 5.2.4

Provide a possible solution

The code in the developer handbook is a good solution https://developer.wordpress.org/reference/functions/get_intermediate_image_sizes/#comment-730

[fliespl]

I think this is still happening on 2.6.0.