Current implementation of #valueWithExit seems a bit inconsistent in its
return value: it returns either nil (if the receiver exited using the exit
block) or the receiver.

Would it be worth modifying it to always return nil? (there are no senders
anyway)

valueWithExit 
-	  self value: [ ^nil ]
+	  ^self value: [ ^nil ]

Or using a nice complementary method #valueWithExit:

valueWithExit: aBlock 
	self value: [^aBlock value].
	^aBlock value

valueWithExit 
	^self valueWithExit: [nil]

Thanks



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Jaromir
^[^
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