A new version of SystemEditor was added to project SystemEditor:
http://www.squeaksource.com/SystemEditor/SystemEditor-kph.105.mcz
==================== Summary ====================
Name: SystemEditor-kph.105
Author: kph
Time: 1 July 2008, 2:14:03 am
UUID: 50700c39-fd5c-4b78-9a65-a0d2c46667e1
Ancestors: SystemEditor-kph.104
guard against nils
=============== Diff against SystemEditor-kph.104 ===============
Item was changed:
----- Method: ObjectMigrator>>migrateFrom:to: (in category 'migrating') -----
migrateFrom: oStream to: dStream
+
+ origin name = #Null ifTrue: [ self halt ].
+ origin ifNil: [ self error: 'shouldnt be nil' ].
+ destination ifNil: [ self error: 'shouldnt be nil' ].
+
oStream nextPut: origin.
dStream nextPut: destination.!