From 7d09b0bb0d032aaa123640fcae67bd9bcf1e0693 Mon Sep 17 00:00:00 2001
From: Pascal Birchler <swissspidy@git.wordpress.org>
Date: Thu, 27 Oct 2016 06:39:16 +0000
Subject: [PATCH] I18N: Apply the `locale` filter when returning early in
 `get_locale()`.

See [38976].
See #29783.

git-svn-id: https://develop.svn.wordpress.org/trunk@38978 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/l10n.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/wp-includes/l10n.php b/src/wp-includes/l10n.php
index 30cacf4a67..2c227bc1da 100644
--- a/src/wp-includes/l10n.php
+++ b/src/wp-includes/l10n.php
@@ -53,10 +53,11 @@ function get_locale() {
 	// If $wpdb hasn't been initialised yet, we can only return what we have.
 	if ( ! $wpdb ) {
 		if ( ! $locale ) {
-			return 'en_US';
+			$locale = 'en_US';
 		}
 
-		return $locale;
+		/** This filter is documented in wp-includes/l10n.php */
+		return apply_filters( 'locale', $locale );
 	}
 
 	// If multisite, check options.