get_locale() and translation functions __() not working

[LukaszJaro]

Hi,

This code below is taking precedence over my custom functions, so get_locale() and translation functions __() are no longer working. I'm using Polylang free version, and I basically create a form for each language and then add it to the page. So for example when I am on a French page, I add the French contact form shortcode.

Here's the most recent CF7 code causing the issue:

$output = wpcf7_switch_locale(
        $contact_form->locale(),
        $callback,
        $contact_form, $atts
    );

Here's what fixes the issue:

$output = wpcf7_switch_locale(
        get_locale(),
        $callback,
        $contact_form, $atts
    );

I'm doing some workarounds like so but I still have issues with _() translation functions. And I'm not only using it in wpcf7_form_hidden_fields hook, also in wpcf7_init to create custom tags, wpcf7_add_form_tag.

$current_locale = get_locale();
add_filter( 'wpcf7_form_hidden_fields', function( $hidden_fields ) use ( $current_locale ) {
    return filter_wpcf7_form_hidden_fields( $hidden_fields, $current_locale );
}, 10, 1 );

Is this the proper way to pull the language from the form and not instead from the actual page so it matches the page language? If is the way, can I somehow hook into to change the locale? Thank you.