Autocompletion error in az account set --subscription

[itowlson]

Steps to reproduce:

1. Type az account set --subscription
2. Hit space bar to trigger autocompletion

Behaviour:

The autocomplete list of subscriptions appears, but so does a message saying __main__.py account set: error: argument --subscription: expected one argument. The cursor is pushed down to the next line and backspacing produces strange visual artefacts (the autocomplete list appears again slightly offset, with bits of the first one still visible, and the error message is also redisplayed). (Screenshot attached.)

[itowlson]

Environment is Windows 10, Python 3.5.3, azure-cli 2.0.1.

[oakeyc]

Which version azure-cli-shell are you using?

[itowlson]

0.1.1a21 - this is what I got when I ran the pip --user --upgrade command a couple of hours ago.