Fix issue in Page.php formatFieldValue function that occurs when formatting a single image|null field.

wire/config.php

@@ -876,8 +876,6 @@ $config->dbSqlModes = array(
 /**
  * A key=>value array of any additional driver-specific connection options.
  * 
- * This is the 
- * 
  * @var array
  * 
  */

wire/core/Page.php

@@ -1300,8 +1300,9 @@ class Page extends WireData implements \Countable, WireMatchable {
 		if($this->outputFormatting) {
 			// output formatting is enabled so return a formatted value
 			$value = $field->type->formatValue($this, $field, $value);
+			// check again for interface since value may now be different
+			if($hasInterface) $hasInterface = is_object($value) && $value instanceof PageFieldValueInterface;
 			if($hasInterface) $value->formatted(true);
-			
 		} else if($hasInterface && $value->formatted()) {
 			// unformatted requested, and value is already formatted so load a fresh copy
 			$this->__unset($field->name);