A new version of Tools was added to project The Inbox:
http://source.squeak.org/inbox/Tools-ct.1145.mcz

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

Name: Tools-ct.1145
Author: ct
Time: 26 March 2022, 4:43:26.044018 pm
UUID: da36ccad-42d1-f248-b132-a7e7fabf1b3f
Ancestors: Tools-mt.1144

Alternative proposal to fix the browser's system category if no category is selected. See: https://lists.squeakfoundation.org/pipermail/squeak-dev/2022-March/219377.html

=============== Diff against Tools-mt.1144 ===============

Item was changed:
  ----- Method: Browser>>selectedPackage (in category 'system category list') -----
  selectedPackage
  
  	^ self environment packageOrganizer
+ 		packageOfSystemCategory: (self selectedSystemCategory ifNil: [^ nil])
- 		packageOfSystemCategory: self selectedSystemCategory
  		ifNone: []!