Wrong indent when line break after a string with backslash

[fireattack]

Environment data

• VS Code version: 1.35
• Extension version (available under the Extensions sidebar): 2019.5.18875
• OS and version: Win 7 x64
• Python version (& distribution if applicable, e.g. Anaconda): 3.7
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): n/
• Jedi or Language Server? (i.e. what is "python.jediEnabled" set to; more info How to update the language server to the latest stable version #3977): true

Expected behaviour

a = 'a\\b'
# <==intent should be at the very left

Actual behaviour

Steps to reproduce:

1. type a = 'a\\b'
2. Press Enter

[fireattack]

probably related: #3284

[DonJayamanne]

Duplicate of #3284

[fireattack]

Ah, I just realize it's caused by a patch (#3915) for that issue, and is a duplicate of #4241 (so is #4563).