Corrected scheduler PID update interval fallback.
Corrected scheduler PID update interval fallback.

StCyr/otrs,balazj/otrs,oiami/otrs,balazj/otrs,StCyr/otrs,oiami/otrs,StCyr/otrs,oiami/otrs,StCyr/otrs,oiami/otrs,StCyr/otrs,balazj/otrs,balazj/otrs,oiami/otrs,balazj/otrs