From https://support.atlassian.com/migration/docs/how-groups-and-permissions-are-migrated/ (emphasis mine):
If we find a group in your cloud site with the same name as a group that you are migrating, we will not re-migrate that group. Instead, we will add the users from the server group into the cloud group.
To be clear, this means only the users in the projects I am migrating, not all users in that group is that correct? I am migrating one project, with 4 users. Both server and cloud groups have a "jira-software-users" group which all our users are in. The one on the server has dozens of users. When I migrate, will this group only get the 4 users from the project or the dozens in the group?
