Fix #3743 line break in multiple select dropdown

RELEASE-NOTES.md

@@ -15,6 +15,7 @@
 
 **Bugs**
 - **Dropdown** - Fixed issue where `apiSettings` was not defaulting to use `cache: 'local'` as specified in the docs
+- **Dropdown** - Fixed issue where long dropdown text entry with `allowAdditions` would cause input to mistakingly drop to next line early #3743
 - **Dropdown** - Fixed issue where dropdowns with sub-menus would not properly activate on mobile #3183
 - **Form** - Fixed issue where grouped `fields` and `field` would cause different margin collapse, making `fields` include larger gaps between content #3717
 - **Menu** - Fixed issue with `stackable` menu where `left/right` `menu` or `item` would incorrectly be floated when stacked. #3604

src/definitions/modules/dropdown.js

@@ -2243,6 +2243,9 @@ $.fn.dropdown = function(parameters) {
               return;
             }
             module.debug('Setting selected menu item to', $selectedItem);
+            if(module.is.multiple()) {
+              module.remove.searchWidth();
+            }
             if(module.is.single()) {
               module.remove.activeItem();
               module.remove.selectedItem();
@@ -2549,6 +2552,9 @@ $.fn.dropdown = function(parameters) {
           message: function() {
             $menu.children(selector.message).remove();
           },
+          searchWidth: function() {
+            $search.css('width', '');
+          },
           searchTerm: function() {
             module.verbose('Cleared search term');
             $search.val('');