[evolution-patches] seek review for bug #47863 (calendar)

[jack <jack jia sun com>]

Hi JP & rodrigo:

Please the review the patch for bug #47863 , and give me your suggestion.

when deleting the task subfolder. evolution-alarm-notify will call AlarmNotify_removeCalendar. In this function, it call
g_hash_table_lookup_extended to search the uri, if it can not find the uri in the hash table, it will return a arbitrariy value (lc and
orig_uri), it will cause crash, always on SuSE, and sometimes on Redhat.

So, I suggest to set the initial value of lc_ptr and orig_str_ptr to NULL, the method can avoid crash.

Thanks
jack