Thanks for the report! I really have to check, what might not working.
It’s working for me, thanks!
Wish there were a way to filter/disable “The chosen title is unique.” I don’t need to be distracted by success messages. I only care about error messages.
I’ve just checked it with a fresh installation of WordPress 5.1 and the Classic Editor plugin installed and it works.
@nothin7 as it does not support the new Block Editor (Gutenberg) and I don’t know how to have a good UX to show the messages, I am not sure if I would continue the plugin.
@nothin7 I’ve added a filter, if you still want to use it. Just add this to a plugin or the functions.php
file:
add_filter( 'unique_title_checker_only_unique_error', '__return_true' );
@nothin7 as I still had some time to wast before catching my flight, I looked into the mechanism to show notices in Gutenberg and found an easy solution, so it now also works in Gutenberg including the filter (see the FAQ in the plugin readme on how the filter can be used, including a simple plugin which implements the filter).
If you like the update or the plugin in general, I would appreciate a review 😉