Rank Math + ACF Analysis: Multiple empty ‘query-attachments’ ajax call

Hello,

Just to let you know that Rank Math does multiple empty ‘query-attachments’ ajax call on admin page load when ACF is activated. Here are the screenshots: https://imgur.com/a/NDIn0Kk

The problem come from \seo-by-rank-math\includes\modules\acf\assets\src\attachmentCache.js:19.

Sometimes uncached is an array with only one key that is empty, resulting in an unnecessary & empty ajax call. Here is the fix:

Replace:

if ( 0 === uncached.length ) {

With:

if ( 0 === uncached.length || ( 1 === uncached.length && '' === uncached[0] ) ) {

Regards.