form.field.ComboBox: add a default width #6914

Author: tobiu

src/form/field/ComboBox.mjs

@@ -118,7 +118,12 @@ class ComboBox extends Picker {
          * which you want to submit instead
          * @member {Number|String} valueField='id'
          */
-        valueField: 'id'
+        valueField: 'id',
+        /**
+         * Default width to prevent rendering issues.
+         * @member {Number} width=150
+         */
+        width: 150
     }
 
     /**