v1.8.12 Maintenance release for the osTicket v1.8 series === Improvements * Out-of-office notification does not clear closing agent (#2181) * Fix signal data pass by reference (#2195) * Fix incorrect message body when fetching TNEF emails (ef1d7df) * Fix layout of some tables in PDF export (aabe4aa) === Performance and Security * Fix XSS issue on choices field type (#2271)