Event set not being cleared

[simon at cliffestones.demon.co.uk (Simon Brown)]

Hello,

I'm using a rather inelegant arrangement where I'm polling for an event 
using RTEMS_NO_WAIT. All is fine until I send the first instance of 
that event, after which despite that event not reoccurring, 
rtems_event_receive is returning RTEMS_SUCESSFUL and an event set with 
the event set. 

I imagined that the event set would get cleared after the initial 
successful poll but it doesn't.

Any ideas as to how I can clear it?

I'm using 4.6 on i386 if that is of interest.

Simon