the code
$value = apply_filters( "acf/update_value", $value, $post_id, $field, $value );
is called before any filters are applied. At this point the original value will always be the same as the current value.
Filters can only modify the $valueand cannot alter the$orig_value` (argument #4). Every filter may get a different value but they will always get the same original value.
Testing this with multiple filters set at different priories and displaying both the current value and the original value in each one I get a constantly changing $value while $orig_value (argument #4 to my filters) remains unchanged.
I don’t understand how is this working in a way that’s unexpected?
