I'm working with Rails 3.0.0.beta4 and found a spot where the input
controls in the form disappeared. The code was using the old-style
block notation (<% rather than <%=) with fields_for in a deeply nested
form. So, a fields_for was nested within another fields_for. There was
no depreciation warning in the server output.
I suspect this might be a "won't fix" but I could log it in Lighthouse
Also, what's the official policy (if there is one) on what deprecated
means? In my experience, sometimes depreciated rails code still works
but you get a warning. Other times, I've seen it where the code
doesn't work anymore and still you get a warning, which seems more
like "unsupported" at that point.