I have a change set that I'm copying into another change set. I get a walkback when I do this.
In ClassChangeRecord>>assimilateAllChangesIn:, otherRecord looks like this:
inForce: false revertable: false changeTypes: an IdentitySet(#rename #addedThenRemoved) thisDefinition: nil priorDefinition: 'NCConstraintMorph subclass: #NCHandleConstraintMorph instanceVariableNames: '''' classVariableNames: '''' poolDictionaries: '''' category: ''NK-NewConnectors''' thisName: #NCLabelConstraintMorph priorName: #NCHandleConstraintMorph thisOrganization: nil priorOrganization: nil thisComment: nil priorComment: nil thisMD: nil priorMD: nil methodChanges: an IdentityDictionary(#applyConstraint:->a MethodChangeRecord (#change) #constrainedHasHalo->a MethodChangeRecord (#change) #extent:->a MethodChangeRecord (#add) #initialize->a MethodChangeRecord (#change) #offset->a MethodChangeRecord (#add) #offset:->a MethodChangeRecord (#change) #position:->a MethodChangeRecord (#change) #setOffset->a MethodChangeRecord (#change) #setOffsetFrom:->a MethodChangeRecord (#change) #step->a MethodChangeRecord (#add) #visible->a MethodChangeRecord (#add) #wantsSteps->a MethodChangeRecord (#remove) )
Image version: Squeak3.1alpha of 7 February 2001 latest update: #3737 Current Change Set: NewConnectors-nk
VM version: Squeak3.0 of 4 February 2001 [latest update: #3446] for: unix
Receiver: a ClassChangeRecord
Instance variables: inForce: false revertable: false changeTypes: an IdentitySet(#rename) thisDefinition: nil priorDefinition: nil thisName: #NCLabelConstraintMorph priorName: 'NCHandleConstraintMorph' thisOrganization: nil priorOrganization: nil thisComment: nil priorComment: nil thisMD: nil priorMD: nil methodChanges: an IdentityDictionary()
Method (temp) variables: changeSymbol: #addedThenRemoved class: nil
Stack: ClassChangeRecord(Object)>>error: ClassChangeRecord>>noteChangeType:fromClass: [] in ClassChangeRecord>>assimilateAllChangesIn: IdentitySet(Set)>>do: ClassChangeRecord>>assimilateAllChangesIn: ChangeSet>>absorbClass:from: [] in ChangeSet>>assimilateAllChangesFoundIn: SortedCollection(OrderedCollection)>>do: ChangeSet>>assimilateAllChangesFoundIn: ChangeSorter>>copyAllToOther ChangeSorter(StringHolder)>>perform:orSendTo: [] in MenuItemMorph>>invokeWithEvent: BlockContext>>ensure: CursorWithMask(Cursor)>>showWhile: MenuItemMorph>>invokeWithEvent: MenuItemMorph>>mouseUp: MenuItemMorph>>handleMouseUp: MouseButtonEvent>>sentTo: MenuItemMorph(Morph)>>handleEvent: MorphicEventDispatcher>>dispatchDefault:with: