Fix for regression caused by angular-ui#718. The search input size was being calculated incorrectly for non-multiple select instances using the Bootstrap theme. Remedy by only calling the sizing function when the select is in multi mode, which is how this function is guarded on other call sites as well.

Author: cmlenz

src/uiSelectDirective.js

@@ -211,8 +211,10 @@ uis.directive('uiSelect',
       attrs.$observe('disabled', function() {
         // No need to use $eval() (thanks to ng-disabled) since we already get a boolean instead of a string
         $select.disabled = attrs.disabled !== undefined ? attrs.disabled : false;
-        // As the search input field may now become visible, it may be necessary to recompute its size
-        $select.sizeSearchInput();
+        if ($select.multiple) {
+          // As the search input field may now become visible, it may be necessary to recompute its size
+          $select.sizeSearchInput();
+        }
       });
 
       attrs.$observe('resetSearchInput', function() {