Only spawn a child in the sibling if we created it

terminatorlib/window.py

@@ -299,6 +299,7 @@ class Window(Container, gtk.Window):
 
         if not sibling:
             sibling = maker.make('Terminal')
+            sibling.spawn_child()
         self.add(container)
         container.show_all()
 
@@ -306,8 +307,6 @@ class Window(Container, gtk.Window):
             container.add(term)
         container.show_all()
 
-        sibling.spawn_child()
-
     def zoom(self, widget, font_scale=True):
         """Zoom a terminal widget"""
         children = self.get_children()