Prevent tagsinput select element to be submitted without a value when they are required

- This was allowing to submit private messages to the wrong recipient

view/js/friendica-tagsinput/friendica-tagsinput.js

@@ -165,7 +165,7 @@
 
       // add <option /> if item represents a value not present in one of the <select />'s options
       if (self.isSelect && !optionExists) {
-        var $option = $('<option selected>' + htmlEncode(itemText) + '</option>');
+        var $option = $('<option>' + htmlEncode(itemText) + '</option>');
         $option.data('item', item);
         $option.attr('value', itemValue);
         self.$element.append($option);
@@ -577,11 +577,6 @@
         tagsinput = new TagsInput(this, arg1);
         $(this).data('tagsinput', tagsinput);
         results.push(tagsinput);
-
-        if (this.tagName === 'SELECT') {
-          $('option', $(this)).attr('selected', 'selected');
-        }
-
         // Init tags from $(this).val()
         $(this).val($(this).val());
       } else if (!arg1 && !arg2) {