Issue with urlencode typeshed annotation starting in mypy 0.780 #4234
Description
https://mypy-play.net/?mypy=0.780&python=3.8&gist=67acdcb73a9d1fef5db0780b9a51d9c9
Short repro
from urllib.parse import urlencode, quote
args_dict = {'a': 'b'}
urlencode(args_dict, quote_via=quote)
Passes on 0.770 fails on 0.780
main.py:4: error: Value of type variable "AnyStr" of "urlencode" cannot be "Union[bytes, str]"
Found 1 error in 1 file (checked 1 source file)