Dispatcher cache invalidation for vanity url's
We are configuring dispatcher cache flush for pages with vanity url's. Pages can have multiple vanity url's in our case.
As per documentation at https://docs.adobe.com/docs/en/dispatcher/page-invalidate.html, activating a page should by default flush the content cached at it vanity path as well. But this is not happening. We are using AEM 6.1 and Dispatcher 4.1.9 on Apache 2.4.
Pls. let us know if we need to do any configuration for flushing cached content on vanity url paths.
A quick search in net showed its an issue tracked under GRANITE-9224. Can you let me know how I can access the details of this.