Fixed error in middleware when force option passed

lib/middleware.js

@@ -102,9 +102,6 @@ module.exports = function(options){
           : err);
       };
 
-      // Force
-      if (force) { return compile(); }
-
       // Compile to cssPath
       var compile = function() {
         if (debug) { log('read', cssPath); }
@@ -128,6 +125,9 @@ module.exports = function(options){
         });
       };
 
+      // Force
+      if (force) { return compile(); }
+
       // Re-compile on server restart, disregarding
       // mtimes since we need to map imports
       if (!imports[sassPath]) { return compile(); }