Fix bug in MsgBase.get_index() and get_all_msg_headers():
The number of messages loaded was limited by the number of messages that were in the status header the last time the status header was read (i.e. when the msgbase was opened or when any of its status header properties were referenced). Also fixed a couple of weird/useless uses of the WHERE macro in error messages.
Showing with 40 additions and 15 deletions