[feenkcom/gtoolkit#3206] when attaching a removed child we should dis…

…patch that it was added to the scene graph

src/Bloc/BlElement.class.st

@@ -492,7 +492,7 @@ BlElement >> attachChild: anElement at: anIndex [
 				eachElement isRemovedFromSceneGraph
 					ifTrue: [
 						eachElement attachSpace.
-						eachElement onAddedToSceneGraph ] ] ]
+						eachElement dispatchAddedToSceneGraph ] ] ]
 ]
 
 { #category : #'api - space' }
@@ -1206,8 +1206,10 @@ BlElement >> dispatchAddedToSceneGraph [
 	self
 		assert: [ self isAttachedToSceneGraph ]
 		description: [ 'I must already be attached to the scene graph' ].
-
+	
 	self onAddedToSceneGraph.
+	self eventDispatcher dispatchAddedToSceneGraph.
+
 	self childrenDo: [ :anElement |
 
 		anElement isAttachedToSceneGraph
@@ -2748,12 +2750,6 @@ BlElement >> onAddedToSceneGraph [
 	"Sent after one of my parents or I was added to scene graph, e.g. root element.
 	At this point #isAttachedToSceneGraph results in true.
 	Note: Always send onAddedToSceneGraph to super class if you override me!"
-
-	self
-		assert: [ self isAttachedToSceneGraph ]
-		description: [ 'I must already be attached to the scene graph' ].
-
-	self eventDispatcher dispatchAddedToSceneGraph
 ]
 
 { #category : #'hooks - children' }