Marcel Taeumel uploaded a new version of Morphic to project The Trunk:
http://source.squeak.org/trunk/Morphic-mt.1184.mcz

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

Name: Morphic-mt.1184
Author: mt
Time: 21 June 2016, 2:12:23.053974 pm
UUID: 6dad4a60-1b46-d049-a8af-afaae6989874
Ancestors: Morphic-mt.1183

Fixes regression (?) to make opening sub-sub menus  -- not to the right but to the left due to limited screen space -- work again.

=============== Diff against Morphic-mt.1183 ===============

Item was changed:
  ----- Method: MenuMorph>>mouseMove: (in category 'events') -----
  mouseMove: evt
  	" If the mouse moves over an item not selected, we try to set it as selected.
  	If this happens depends on that the current selected item wants to release
  	its selection. "
  
+ 	self selectedItem ifNil: [
+ 		self 
+ 			selectItem: (
+ 				self items 
+ 					detect: [ :each | each containsPoint: evt position ] 
+ 					ifNone: [ nil ])
+ 			event: evt].
- 	"Note: The following does not traverse upwards but it's the best I can do for now"
- 	popUpOwner ifNotNil:[(popUpOwner activateOwnerMenu: evt) ifTrue: [^ self]].
  
- 	self selectedItem ifNil: [ ^ self ].
- 	(self selectedItem containsPoint: evt position) ifTrue: [ ^ self ].
- 	self 
- 		selectItem: (
- 			self items 
- 				detect: [ :each | each containsPoint: evt position ] 
- 				ifNone: [ nil ])
- 		event: evt.
- 
  	"Transfer control to *either* the currently active submenu or the pop up owner, if any. Since the active sub menu is always displayed upfront check it first."	
+ 	self selectedItem ifNotNil: [
+ 		(self selectedItem activateSubmenu: evt) 
- 	selectedItem ifNotNil: [
- 		(selectedItem activateSubmenu: evt) 
  			ifTrue: [ ^self ]
  			ifFalse: [ 
  				(self containsPoint: evt position) ifFalse: [ 
+ 					self selectItem: nil event: evt ] ] ].
+ 
+ 	"Note: The following does not traverse upwards but it's the best I can do for now"
+ 	popUpOwner ifNotNil:[(popUpOwner activateOwnerMenu: evt) ifTrue: [^ self]].
+ !
- 					self selectItem: nil event: evt ] ] ].!