Underscored SASS files are being output anyway

[jglovier]

In my instance, I have a src and htdocs (configured for output). Inside src I have a sass dir, with a main.scss file, and a global dir. Inside the global dir are several .scss files prefixed with the _ so that compass will not output them.

However, during the build process, Anvil (assumedly) is outputting them to htdocs anyway, both into a sass dir matching the one in src, and to a css dir that mirrors sass.