Make sure sticky does not reflow when setting same scroll

src/definitions/modules/sticky.js

@@ -347,6 +347,9 @@ $.fn.sticky = function(parameters) {
           },
           scroll: function(scroll) {
             module.debug('Setting scroll on element', scroll);
+            if(module.elementScroll == scroll) {
+              return;
+            }
             if( module.is.top() ) {
               $module
                 .css('bottom', '')
@@ -418,10 +421,6 @@ $.fn.sticky = function(parameters) {
             elementVisible = (element.height !== 0)
           ;
 
-          // save current scroll for next run
-          module.save.lastScroll(scroll.top);
-          module.save.elementScroll(elementScroll);
-
           if(elementVisible) {
 
             if( module.is.initialPosition() ) {
@@ -487,6 +486,10 @@ $.fn.sticky = function(parameters) {
               }
             }
           }
+
+          // save current scroll for next run
+          module.save.lastScroll(scroll.top);
+          module.save.elementScroll(elementScroll);
         },
 
         bindTop: function() {