Discourse bug created two accounts

When I switched from Firefox browser to Chrome browser, Discourse automatically created new account. Now my new posts are assigned, more or less randomly, to these two accounts.

It gets worse - my latest posts are not listed, and I am spammed with replies to my posts. The spam has unsubscribe link (shown below), but the link does not work.

@andrew.nowicki I thought you had an imposter for a while there! Must be annoying. Are logged into chrome? If chrome saved your login it might be using different credentials? Have a look at Google passwords and see what has been saved for discourse

[quote=“dharman, post:3, topic:77578”]
Have a look at Google passwords and see what has been saved for discourse
[/quote]I
According to the following screenshot, Chrome is asking me for Windows password. I have Windows 8 (OEM upgrade) password, but this password is the property of Microsoft, so I should not share it with Google.