The hanging after 2nd stage install bug

[art yerkes]

This patch works around the 'hanging after 2nd stage install' bug but I
don't really understand what's going on here.  Basically, It looks like
ProcessData is null on the very last call (the one that would seemingly
flush the registry and reboot).

If i comment the break, nothing breaks and reactos reboots as expected
when i press the reboot button.
-- 
Here's a simple experiment. Stand on a train track between two locomotives
which are pushing on you with equal force in opposite directions. You will
exhibit no net motion. None the less, you may soon begin to notice that
something important is happening.
-- Robert Stirniman

[Ge van Geldorp]

After the latest rewrite thing requests are being made to CSRSS on behalf of
a process which earlier indicated it was terminating. I've changed CSRSS to
not believe the process anymore when it says it is going to terminate.

Ge van Geldorp.