[FIX] MessageTally-ensure-fix-avi

avi at beta4.com avi at beta4.com
Thu Jan 22 20:12:00 UTC 2004

from preamble:

"Change Set:		MessageTally-ensure-fix-avi
Date:			22 January 2004
Author:			Avi Bryant

This adds an #ensure: guard to the block evaluated in
MessageTally>>spyOn:every:, to make sure that the tally process ends
even if the block is curtailed.  Without this change, it was possible to
wreak havoc with, eg,

[MessageTally spyOn: [self error: 'foo']] fork"!
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