Merge pull request #4188 from mfilser/fix_save_custom_fields_StringTemplates_on_touch_devices

Custom Field StringTemplates didn't save the last input value on touch devices

client/components/cards/cardCustomFields.js

@@ -271,7 +271,7 @@ CardCustomField.register('cardCustomField');
       {
         'submit .js-card-customfield-stringtemplate'(event) {
           event.preventDefault();
-          const items = this.getItems();
+          const items = this.stringtemplateItems.get()
           this.card.setCustomField(this.customFieldId, items);
         },