improper hash conversion when erb file has ampersand in html

[dgm]

The following example is converted wrong:

<h1>improper &  html</h1>

<%- foo(:url => bar) %>
<%= :label => "Save"%>

It converts to incorrect ruby:

%h1 improper   html
- foo(:url = bar)
= :label = Save

If you remove the ampersand in the h1 element, the result handles the hash rockets and quotes correctly. I realize the ampersand is not correct html, but it shouldn't break the conversion like this.