Users can't edit events that are in folders where they have Local role editing rights

[dpopsmg]

When the Calendar folder has edit, add, review rights assigned by the folders sharing tab, users cannot edit events or move events that are not theirs in calendar view.

Found this issue in Solgema/fullcalendar/browsers/adaptor.py:

diff --git a/Solgema/fullcalendar/browser/adapters.py b/Solgema/fullcalendar/browser/adapters.py
index 189cbbb..9f7ea74 100644
--- a/Solgema/fullcalendar/browser/adapters.py
+++ b/Solgema/fullcalendar/browser/adapters.py
@@ -320,7 +320,7 @@ class SolgemaFullcalendarEditableFilter(object):
def _listSFAllowedRolesAndUsersModify(self):
sm = getSecurityManager()
user = sm.getUser()

•    effective_roles = user.getRoles()
  

•    effective_roles = user.getRolesInContext(self.context)
   if sm.calledByExecutable():
       eo = sm._context.stack[-1]
       proxy_roles = getattr(eo, '_proxy_roles', None)
  

getRoles() method only evaluates users roles at root of site. getRolesInContext(self.context) evaluates users roles in the folder that is being read for events.
This bug means editable property of event in JS calendar is not set correctly for non logged in user unless patchted. ;-(