New lines are not restored when opening a saved scene.
If the scene project file has the following :
<Text
id="vtkMRMLTextNode2" name="Text_1" hideFromEditors="false" selectable="true" selected="false" userTags="" text="x
y
z
" encoding="3" ></Text>
selecting Text_1 node shows ‘x y z’ without the new lines.
I suppose it needs a fix, thanks for looking into this.