title: Rails form builder unexpectedly closes the form tag when used within tables
body: <p>Form builder behaves unexpectedly when building a form within a table. It closes the form immediately.</p>
  
  <p>Yes, I know that tables are generally bad. But in this case, I'm displaying line items for billing purposes, which is a pretty good use case for tables.</p>
  
  <p>Each row is designed to be its own form that auto-submits on change.</p>
  
  <p><a href="https://i.stack.imgur.com/YvqS5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YvqS5.png" alt="This image explains what is going on"></a>
  </p>
  
  <p><a href="https://github.com/protolif/rustic/blob/rails4/app/views/labors/index.html.haml#L16" rel="nofollow noreferrer">View Source</a></p>
  
  <p>I'm not sure if this is by design in Rails, or if it's a bug.</p>
  
  <p>I get the whole opinionated software thing, but this behavior is a little extreme.</p>
  
  <p>I promise that there are no bombs in my shoes. The framework should let me do what I want, even if you think it's stupid.</p>
  
  <p>At this point I'm ready to copypasta the raw HTML myself. But, I really shouldn't have to.</p>
  
  <p>What do you guys think (if that's not too gender normative)?</p>