fix the phone input field showing the wrong placeholder (#9316)

data/phone_formats.json

@@ -40,6 +40,7 @@
   "ms": "+1-664-555-1234",
   "nl": "+31 42 123 4567",
   "no": "+47 22 12 34 56",
+  "nz": "+64 9 123 4567",
   "pe": "+51 1 1234567",
   "pl": "+48 42 123 4567",
   "pr": "+1-787-555-1234",

modules/ui/fields/input.js

@@ -324,6 +324,8 @@ export function uiFieldText(field, context) {
             .attr('placeholder', isMixed ? t('inspector.multiple_values') : (field.placeholder() || t('inspector.unknown')))
             .classed('mixed', isMixed);
 
+        if (field.type === 'tel') updatePhonePlaceholder();
+
         if (field.key.split(':').includes('colour')) updateColourPreview();
 
         if (outlinkButton && !outlinkButton.empty()) {