Index: src/wp-includes/l10n.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- src/wp-includes/l10n.php	(revision 8d6d88ffbbda571941dcab581ab8407bdfdf9a80)
+++ src/wp-includes/l10n.php	(revision )
@@ -848,7 +848,7 @@
  */
 function get_translations_for_domain( $domain ) {
 	global $l10n;
-	if ( isset( $l10n[ $domain ] ) || _load_textdomain_just_in_time( $domain ) ) {
+	if ( isset( $l10n[ $domain ] ) || ( _load_textdomain_just_in_time( $domain ) && isset( $l10n[ $domain ] ) ) ) {
 		return $l10n[ $domain ];
 	}