I would like to prevent all groups from sharing folders from their home directory. According to the ownCloud 8.1.5 documentation (here: https://doc.owncloud.com/server/8.1/admin_manual/configuration_files/file_sharing_configuration.html), I can accomplish that by using the following quoted instructions:
"Check Exclude groups from sharing to prevent members of specific groups
from creating any file shares in those groups. When you check this, you’ll
get a dropdown list of all your groups to choose from. Members of excluded
groups can still receive shares, but not create any"
However, when I check this box, and add the groups who I want to prevent from sharing, when I log in as a member of one of those groups, ownCloud still lets me share folders with other groups. This appears to be bug. Can anyone help?