Fix import completion issues.

test/completion/on_import.py

@@ -63,7 +63,7 @@ import datetime.date
 
 #? 21 ['import']
 from import_tree.pkg import pkg
-#? 22 ['import', 'mod1']
+#? 22 ['mod1']
 from import_tree.pkg. import mod1
 #? 17 ['mod1', 'mod2', 'random', 'pkg', 'rename1', 'rename2', 'recurse_class1', 'recurse_class2']
 from import_tree. import pkg