Weird syntax highlighting when mixing modes in quotation marks

[Deniz Dogan]

Examples:

django-html-mumamo:
<a href="{% url foo %}">Hello</a>

nxhtml-mode:
<a href="<?php echo "foo"; ?>">Hello</a>

[Michael Pontus (m.pontus)]

I can confirm this problem. It looks like chunk fontification doesn't account for contents of preceeding chunks of the same type and every chunk is fontified as if it was the only content of the buffer.