Marcel Taeumel uploaded a new version of PackageInfo-Base to project The Trunk:
http://source.squeak.org/trunk/PackageInfo-Base-mt.73.mcz

==================== Summary ====================

Name: PackageInfo-Base-mt.73
Author: mt
Time: 17 March 2021, 11:09:17.917193 am
UUID: 6997c545-3e89-d140-8c54-65f1ef4b15e7
Ancestors: PackageInfo-Base-mt.72

In packages, fixes inclusion test for invalid method references. Class organization cannot distinguish between 'as yet unclassified' and 'not even in the class'.

=============== Diff against PackageInfo-Base-mt.72 ===============

Item was changed:
  ----- Method: PackageInfo>>includesMethod:ofClass: (in category 'testing') -----
  includesMethod: aSymbol ofClass: aClass
  	aClass ifNil: [^ false].
+ 	(aClass includesSelector: aSymbol) ifFalse: [^ false].
  	^ self
  		includesMethodCategory: ((aClass organization categoryOfElement: aSymbol)
  										ifNil: [' '])
  		ofClass: aClass!