Fix issue with down arrow shortcut in dropdown

RELEASE-NOTES.md

@@ -8,6 +8,7 @@
 - **Popup** - Separated className setting for `visible` into `visible` and `popupVisible`, this way you can remove visible indiciation on activating element without modifying popup.
 
 **Bugs**
+- **Dropdown** - Fixed issue where using `down` key to re-open dropdown when using `search selection dropdown` would start at the top element instead of jumping to selected element
 - **Sidebar** - Removed use of `ios` browser detection, and use of `-webkit-overflow-scrolling: touch;`. iOS no longer has sizing issues when displaying sidebar content in latest iOS.
 - **Search** - Fixed issue where `searchDelay` could cause results to appear after search had lost focus.
 - **Sticky** - Fix issue where sticky would cause page to shift when `context` height was determined by sticky's height in `position: static;`  #3430

src/definitions/modules/dropdown.js

@@ -1470,7 +1470,6 @@ $.fn.dropdown = function(parameters) {
                 // down arrow (open menu)
                 if(pressedKey == keys.downArrow && !module.is.visible()) {
                   module.verbose('Down key pressed, showing dropdown');
-                  module.select.firstUnfiltered();
                   module.show();
                   event.preventDefault();
                 }