None of the other sections produce a double dash in the header. Only the JomSocial frontpage does. The reason is that JomSocial insists on displaying the string "Welcome to (sitename) - " on the header. If I blank out the "Welcome to " part in a language override and leave the (sitename) field on the JS backend setting for (sitename) blank, Jomsocial inserts two spaces separated by a dash.
How can I stop that from happening without that customisation being lost in the next JS update?
Alternatively, how can I prevent the Joomla sitename from being included in the JS frontpage alone? That way I could use JS's "Welcome to ..." without having the sitename twice in the header.