Marcel Taeumel uploaded a new version of Kernel to project The Trunk: http://source.squeak.org/trunk/Kernel-mt.897.mcz
==================== Summary ====================
Name: Kernel-mt.897 Author: mt Time: 31 January 2015, 6:16:02.184 pm UUID: 3fdc3270-04ea-1e45-a02e-1cc17c459fde Ancestors: Kernel-eem.896
Dynamic variables will not store their default values into the process' env anymore. This supports changing the result of #default without having to terminate that process (or fiddling with the env var directly...)
=============== Diff against Kernel-eem.896 ===============
Item was changed: ----- Method: DynamicVariable class>>value:during: (in category 'accessing') ----- value: anObject during: aBlock
+ | p oldValue outerScopeWasDynamic | - | p oldValue | p := Processor activeProcess. + outerScopeWasDynamic := true. + oldValue := p + environmentAt: self + ifAbsent: [outerScopeWasDynamic := false. nil]. - oldValue := p environmentAt: self ifAbsent: [self default]. ^[ p environmentAt: self put: anObject. aBlock value ] + ensure: [ outerScopeWasDynamic + ifTrue: [p environmentAt: self put: oldValue] + ifFalse: [p environmentRemoveKey: self ifAbsent: []] ].! - ensure: [ p environmentAt: self put: oldValue ].!