869c721e91
In Vector the language button is a checkbox. It uses the checkbox hack to provide non-JS dropdown behaviour. When the JS upgrades such a button, the checkbox behavior continues to work. An unsatisfying hack in Vector workarounds this problem. This provides a neater way to disable that behavior in Vector once the button is clicked by adding support for the well documented checkbox hack. Bug: T283757 Change-Id: I97a69c30b27cb1ded06451389e086229561c3589