Using parens around sub-records prevents the parent from being part of the identity

[ibdknox]

The following blocks should be identical, but don't behave identically.

This works:

search
   menu-item = [#menu name image cost]
bind @browser
   [#div menu-item #item-container
     children:
      [#div text:name]
      [#div text:"${{cost}}"] ]

This doesn't:

search
   menu-item = [#menu name image cost]
bind @browser
   [#div menu-item #item-container
     children: ([#div text:name]
                      [#div text:"${{cost}}"] )]

The suspected reason is that we aren't sending the parent down through the parenthesis as a dependency for the sub-records.