Attributes of self-closing HTML tags being erased by sanitize_post_field

[dreamer12345]

Hello,

I found a bug with some "self-closing tags" (like <img ... />) when they are in a field which is processed by the function sanitize_post_field. The bug occurs when there are no spaces between the last attribute of a self-closing tag and the "/>", for example:

<img src="picture.jpg"/>

instead of

<img src="picture.jpg" />

When the first is processed by sanitize_post_field (the one with no space between src="picture.jpg" and />), it is transformed to:

<img>

(Yes "<img>" and nothing else).

I discovered this bug by using sanitize_post_field like this:

sanitize_post_field('post_content', force_balance_tags($my_content), $post_ID, 'db');

(At the beginning I just had <img src="picture.jpg">, it was transformed to <img src="picture.jpg"/> by force_balance_tags and retransformed to <img> by sanitize_post_field)

Thank you for your attention,

Frédéric.

[xknown]

Duplicate of #4723