Fixed Issues/Bugs

#5668 Help desk doesn't refresh "all requests" grid when switching a user.
#5664 Export in custom reports. Description is cut off after a number of characters.
#5659 Change Help Desk Portal Global mode (of project binds to company, only requesters from this company may post requests to it even in global mode).
#5596 Error: NullReferenceException in Custom Fields in ToDo list.
#5408 Help Desk Portal: Attachment's names contain GUID.