nua_notifier.c: fixed crash with event fetch
nua_notifier.c: fixed crash with event fetch

darcs-hash:20080423183007-70aaf-ccfc14d89f6e275b2a7f8292f0d0c16565534a2e.gz

jart/sofia-sip,erdincay/sofia-sip,BelledonneCommunications/sofia-sip,jart/sofia-sip,unispeech/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,BelledonneCommunications/sofia-sip,BelledonneCommunications/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,erdincay/sofia-sip,xhook/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,jart/sofia-sip