Hello,
I’m currently using the block_panopto_moodle310_2020121100 version in Moodle.

I have a question regarding the sync_external_user function in /blocks/panopto/lib/panopto_user_soap_client.php.

The function has the following comment:

* Syncs a user with all of the listed groups, the user will be removed from any unlisted groups

** @param@param string $firstname user first name

* @param@param string $lastname user last name

* @param@param string $email user email address

* @param@param array $externalgroupids array of group ids the user needs to be in

* @param@param boolean $sendemailnotifications whether user gets emails from Panopto updates

I would like to clarify what this comment means.

1. Does this mean that if a user is not included in the $externalgroupids, they will be removed from all existing groups?
   For example, if a user is currently registered as a viewer in around 50 Moodle courses, and by mistake, I only pass one course group ID in $externalgroupids, will the user automatically be removed from the other 49?
2. Does this mean the user will also be removed from other roles (e.g., creator or publisher) in the folder/content associated with those groups?
   For example, if the user is a viewer in about 50 Moodle courses and I mistakenly pass only one course's viewer group in $externalgroupids, will they be removed from creator or publisher roles in that folder/content?
   will the user's other course group permissions (in the remaining 49 courses) stay unchanged?

As far as I understand, the sync_external_user function in /blocks/panopto/lib/panopto_data.php gathers all courses the user is enrolled in and creates a group array (viewer, creator) based on the user's role (teacher, student).
Then it calls the sync_external_user function in /blocks/panopto/lib/panopto_user_soap_client.php.

If interpretation (1) is correct,
Could you please let me know where in the code the user is removed from the other 49 course groups?

Thank you.