Notification of update still visible after an upgrade

At NethServer we provide a module for Nextcloud to get something fully configured and based on container for NethServer8.

This time with the upgrade from 27.1.7 to 27.1.9 I have something fun, the notification that an upgrade is available is up and never seen before

With the same code

upgrade from 27.1.7 to 27.1.9

direct install to 27.1.9

this is fun because we use the code to do not check upgrade and do not use the webinstaller

So this are the option we use

   'upgrade.disable-web' => true,
   'updatechecker' => false,

I am a bit out of clues so if you have an idea: