Eliot Miranda uploaded a new version of Tools to project The Trunk: http://source.squeak.org/trunk/Tools-ct.985.mcz
==================== Summary ====================
Name: Tools-ct.985 Author: ct Time: 22 August 2020, 8:05:25.644378 pm UUID: fcb716be-e917-2646-ade9-4c4550088392 Ancestors: Tools-eem.984
Fix selection updates in ChangeList by sending missing observer updates.
Same reason as ToolBuilder-Morphic-ct.253. I also re-checked all other senders of #setSelectionList: in the Trunk image and did not found any further invalidation problems.
=============== Diff against Tools-eem.984 ===============
Item was changed: ----- Method: ChangeList>>listSelectionAt:put: (in category 'viewing access') ----- listSelectionAt: index put: value
listSelections at: index put: value. + self + changed: #listSelectionAt:; + changed: #listIndex. - self changed: #listIndex. ^ value!