Correctly present an error to the user if the nickname field is empty when updating a user profile. It's strange that this field is required, but it is, so be it.

Fixes #33310
Props prasad-nevase, metodiew

Built from https://develop.svn.wordpress.org/trunk@34505


git-svn-id: http://core.svn.wordpress.org/trunk@34469 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/user.php

@@ -107,7 +107,12 @@ function edit_user( $user_id = 0 ) {
 	/* checking that username has been typed */
 	if ( $user->user_login == '' )
 		$errors->add( 'user_login', __( '<strong>ERROR</strong>: Please enter a username.' ) );
-
+		
+	/* checking that nickname has been typed */
+ 	if ( $update && empty( $user->nickname ) ) { 
+		$errors->add( 'nickname', __( '<strong>ERROR</strong>: Please enter a nickname.' ) ); 
+	}
+	
 	/* checking the password has been typed twice */
 	/**
 	 * Fires before the password and confirm password fields are checked for congruity.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34504';
+$wp_version = '4.4-alpha-34505';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.