Chris Cunningham uploaded a new version of Morphic to project The Trunk:
http://source.squeak.org/trunk/Morphic-cbc.1664.mcz

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

Name: Morphic-cbc.1664
Author: cbc
Time: 5 June 2020, 8:31:07.419315 am
UUID: bf356d19-6ce6-6f4f-8c68-5f973a0c9f0c
Ancestors: Morphic-mt.1632, Morphic-mt.1663

locked messageMorph in DialogWindow so that the morph can once again be controlled by keystrokes.

=============== Diff against Morphic-mt.1663 ===============

Item was changed:
  ----- Method: DialogWindow>>createMessage: (in category 'initialization') -----
  createMessage: aString 
  	
  	messageMorph := aString asText asMorph.
  	messageMorph
  		name: 'Message';
  		readOnly: true;
+ 		setProperty: #indicateKeyboardFocus toValue: #never;
+ 		lock.
- 		setProperty: #indicateKeyboardFocus toValue: #never.
  	self setMessageParameters.	
  	^ messageMorph!