Adding import messes up module's docstring

[MatejNikl]

Have a blank line before the module's docstring (disregard the invisible character, I wasn't able to produce an empty first line in the code block without it):

 
"""module docstring"""

running isort -a "import os" file.py modifies it to:

 
import docstring"""
import os"""module

Am I doing something wrong or is this a bug?
isort==5.4.2

[timothycrosley]

A fix for this issue has just been deployed to PyPI in version 5.5.0 of isort.

Thanks!

~Timothy