nua_update_server_report(): fix bugs checking pending INVITEs in fake precondition handling
nua_update_server_report(): fix bugs checking pending INVITEs in fake precondition handling

Ignore-this: dc67f6287bf48aa8e2a39e2ece96821

Coverity issue.

darcs-hash:20090513170415-db55f-4973367ae0d0f28cef9af7d191ebb493a3e9143e.gz

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