When the SEF is enabled, Joomla does not cleanup all the parameters when they are already present in the menu item id definition.

In this "Article Sharing for JMS" we have added a cleanup of the parameters when they are already present in the menu item id.

So now the "site_id" parameter can be hidden when its value is the same as the menu item definition corresponding to the SEF URL computed based on the alias.

This "Article Sharing for JMS" version 1.0.12 require JMS Multisites 1.2.34 or higher. Otherwise you will get a fatal PHP error due to call to a "multisitesfactory" file that is only available wtih JMS Multisites 1.2.34 or higher.

Also purge all the converted files to remove the older caches. Otherwise you will  get a duplicate "routing" definition error message.