[PolyGerrit] Cannot link chromium account to my google account, or the other way around.

Right now I have 2 accounts on PolyGerrit, one is my google account, the other is the chromium account, I cannot link my chromium account to my google account or the other way around, every time I try to do that, it says 'Error, the account is in use'. 

When I do ``git cl upload``, the change will go to my google account and I have no control over which account it goes, which really is not the behavior I want because only my chromium account is infra committer...