filter query_loop_block_query_vars repeater 4 times

[gigito78]

Hello! I think that filter query_loop_block_query_vars be repeated 4 times foreach query.

Tried to use this simple code in functions.php(theme Twenty Twenty-Two, no plugins):

add_filter( 'query_loop_block_query_vars', function( $query, $block ){
echo '1<br>';
return $query;

}, 21, 2 );

You can notice 4 times 1 on top of the page.

[gigito78]

Forgotten: obviously only 1 query loop block in the page and query loop block is used on post content.