Password manager fills in keybase user name on github proof prompt

I tried to prove my github identity to keybase. And in going through the forms to generate the gist to post. I used my password manager to fill in the keybase password. I believe there was a hidden field with the user name. Since even though I clearly typed tfoote as my github username on the previous screen, it generated a gist with tully as my github username. I had to not use the password manager to get the gist to come out correctly.

Start by reproducing the GitHub identity proof flow using a password manager, comparing it with manual entry of the GitHub username tfoote. Check whether the generated gist uses the password manager's username value, and consider the issue resolved when the entered GitHub username is preserved in the generated proof.

Written by the indexing model from the issue text.