Marcel Taeumel uploaded a new version of Morphic to project The Trunk:
http://source.squeak.org/trunk/Morphic-mt.1782.mcz

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

Name: Morphic-mt.1782
Author: mt
Time: 6 October 2021, 11:00:59.501367 am
UUID: 917d7198-f778-8d40-94ef-8a0d6a48186c
Ancestors: Morphic-mt.1781

Fixes regression in grip resizing.

=============== Diff against Morphic-mt.1781 ===============

Item was changed:
  ----- Method: BottomLeftGripMorph>>apply: (in category 'target resize') -----
  apply: delta 
  	| oldBounds |
  	oldBounds := self target bounds.
  	self target
  		bounds: (oldBounds origin + (delta x @ 0) corner: oldBounds corner + (0 @ delta y)).
  	self flag: #workaround. "mt: Due to a layout-specific 'let us start in the top-left corner of a layout cell'-behavior, we have to go up the owner chain and propagate the delta. See Morph >> #layoutInBounds:positioning: and there section 1.2."
  	self target allOwnersDo:
  		[:anOwner |
  		(anOwner layoutPolicy notNil and: [anOwner ~~ Project current world])
+ 			ifTrue: [anOwner left: anOwner left + delta x]].!
- 			ifTrue: [anOwner left: owner left + delta x]].!