I noticed that, if you visit a Workboard, and you Hide a Column, and you Undo, then the page is reloaded, for no reason in the world.

I'm talking about the Cancel button in these popups:

This is true in all "Hide" popups (when hiding a Milestone, or hiding a normal Column):

As inspiration, we can copy the code probably from the Edit Column popup, that has a Cancel button that does not reload the page but just closes the popup.