How do you find out someone's previous/original username on CodeForces?

Revision en1, by Ashishgup, 2017-01-16 19:07:16

I have noticed that quite a few people changed their username on CodeForces, but I can't figure out some of their original/previous usernames because of bad memory/changed profile picture accompanied with the changed name. Is there any method to do so?

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en1 English Ashishgup 2017-01-16 19:07:16 323 Initial revision (published)