BUG: polling: don't skip polled events in the spec list

Commit 09f245 came with a bug : if we don't process events from the
spec list that are also being polled, we can end up with some stuck
events that nobody processes.

We must process all events from the spec list even if they're being
polled in parallel.
diff --git a/src/fd.c b/src/fd.c
index ac6ec5f..5df0b45 100644
--- a/src/fd.c
+++ b/src/fd.c
@@ -156,10 +156,10 @@
 
 		fdtab[fd].ev &= FD_POLL_STICKY;
 
-		if ((e & FD_EV_STATUS_R) == FD_EV_ACTIVE_R)
+		if (e & FD_EV_ACTIVE_R)
 			fdtab[fd].ev |= FD_POLL_IN;
 
-		if ((e & FD_EV_STATUS_W) == FD_EV_ACTIVE_W)
+		if (e & FD_EV_ACTIVE_W)
 			fdtab[fd].ev |= FD_POLL_OUT;
 
 		if (fdtab[fd].iocb && fdtab[fd].owner && fdtab[fd].ev)