It is part of these series of changes to polls plugin:
https://github.com/discourse/discourse/pull/6740/commits/ac7fb33f02cf5bfb7939f07b3fa5ab30d486b308
It is part of these series of changes to polls plugin:
https://github.com/discourse/discourse/pull/6740/commits/ac7fb33f02cf5bfb7939f07b3fa5ab30d486b308