was comparing against wrong enum.

space_view3d_spacebar_menu.py

@@ -509,7 +509,7 @@ class VIEW3D_MT_Space_Dynamic_Menu(bpy.types.Menu):
             layout.operator("object.mode_set", text="Enter Object Mode",
                             icon='OBJECT_DATA')
 
-        elif ob.mode == 'EDIT_ARMATURE':
+        elif ob.mode == 'EDIT':
             # Armature menu
 
             # Search Menu