The description for ENABLE_INTERNAL_USER_EDIT in the configuration file foldercache.properties is wrong regarding the setting only being applied for newly created contexts. This is not / no longer true, since it is evaluated dynamically for exiting contexts as well. Therefore, the description is changed from:

# Define if users are allowed to edit their own contact object
# contained in folder 'Global Address Book' aka 'Internal Users'. Switching this
# parameter only has an effect for new created contexts.

to:

# Define if users are allowed to edit their own contact object
# contained in folder 'Global Address Book' aka 'Internal Users'.
ENABLE_INTERNAL_USER_EDIT=TRUE