en_core_web_md and en_core_web_lg models are giving 'False' for all words in the sentence using "is_stop" attribute.

PS : en_core_web_sm is working fine.

System Information :

• Python version: 2.7.12
• Platform: Linux-4.10.0-38-generic-x86_64-with-Ubuntu-16.04-xenial
• spaCy version: 2.0.2
• Models: en