after refresh

[Surgeonito]

There is a case when the plugin is not working properly.

When user A saves and after his admin edit panel is fully refreshed and THEN user B updates - all is ok.

But when two users are editing the post and both of them will press 'Update' at the same time - one of them will get this :

user B has taken over and is currently editing.
Your latest changes were saved as a revision.

[Surgeonito]

I checked the parameters' set send with this heartbeat request and there was no 'fce' field, so the
\Fabrica\CollaborativeEditing\Base::filterHeartbeatResponse method is not doing what it is supposed to do.

Somehow the code
wp.heartbeat.enqueue('fce', { 'post_id' : jQuery('#post_ID').val() }, true);
in \wp-content\plugins\fabrica-collaborative-editing\js\post.js takes no effect.