Not purging when a post changes from scheduled to published

Hi,
When creating a scheduled post, the purge requests occur when you click “Publish”.
But when the post changes from “scheduled” to “published”, no purges are sent (confirmed by logging purge requests to the error-log option). Therefore, if it is cached, old content is served.

According to the changelog, version 1.2.9 included an “added fix for scheduled posts transition to published” but I am using the last version, 1.2.12 and this doesn’t seem to be solved.

Could you check that this is actually a bug and hopefully solved in future versions?
Thanks