Local and IE Fixes CSS may not be flushed from cache

I've been having real problems with browser cache clearing in a fusion subtheme.

Changes that I make in the subtheme local.css just aren't being picked up by Firefox or IE.

Drupal cache clear, browser cache clear, reboot, not behind proxy cache, multiple locations and all that jazz... just not picking up.

Anyway, I note that something may help this.

In @common.inc @drupal_get_css caching issues are somewhat mitigated by adding a query string to the end of each css file name like so:

$query_string = '?'. substr(variable_get('css_js_query_string', '0'), 0, 1);

That is not being done for fusion in @template.php in @fusion_core_preprocess_page(&$vars).

My suggestion is that you might consider adding a string just like core does.

So... at ~ line 98 in template.php

  // Get query string like core
  $query_string = '?'. substr(variable_get('css_js_query_string', '0'), 0, 1);
  foreach ($themes as $name => $path) {
    $link = '<link type="text/css" rel="stylesheet" media="all" href="' . base_path() . $path;
    $vars['setting_styles'] .= (file_exists($path . $grid_style . '.css')) ? $link . $grid_style . '.css' . $query_string . '" />' . "\n" : '';
    $vars['ie6_styles'] .= (file_exists($path . '/css/ie6-fixes.css')) ? $link . '/css/ie6-fixes.css' . $query_string . '" />' . "\n" : '';
    $vars['ie7_styles'] .= (file_exists($path . '/css/ie7-fixes.css')) ? $link . '/css/ie7-fixes.css' . $query_string . '" />' . "\n" : '';
    $vars['ie8_styles'] .= (file_exists($path . '/css/ie8-fixes.css')) ? $link . '/css/ie8-fixes.css' . $query_string . '" />' . "\n" : '';
    $vars['local_styles'] .= (file_exists($path . '/css/local.css')) ? $link . '/css/local.css' . $query_string . '" />' . "\n" : '';
    if (defined('LANGUAGE_RTL') && $language->direction == LANGUAGE_RTL) {
      $vars['setting_styles'] .= (file_exists($path . $grid_style . '-rtl.css')) ? $link . $grid_style . '-rtl.css' . $query_string . '" />' . "\n" : '';
      $vars['ie6_styles'] .= (file_exists($path . '/css/ie6-fixes-rtl.css')) ? $link . '/css/ie6-fixes-rtl.css' . $query_string . '" />' . "\n" : '';
      $vars['ie7_styles'] .= (file_exists($path . '/css/ie7-fixes-rtl.css')) ? $link . '/css/ie7-fixes-rtl.css' . $query_string . '" />' . "\n" : '';
      $vars['ie8_styles'] .= (file_exists($path . '/css/ie8-fixes-rtl.css')) ? $link . '/css/ie8-fixes-rtl.css' . $query_string . '" />' . "\n" : '';
      $vars['local_styles'] .= (file_exists($path . '/css/local-rtl.css')) ? $link . '/css/local-rtl.css' . $query_string . '" />' . "\n" : '';
    }
  }