diff --git a/.hgtags b/.hgtags
index 2c57bd3be3..1af3063cb8 100644
--- a/.hgtags
+++ b/.hgtags
@@ -2666,3 +2666,4 @@ ce587b26b8d6bec140af41712bb99c4c73c3bf99 v7-4a-011
 fca6ba0d2d66d38da8ae023e73944a69662c0d66 v7-4a-012
 42d592dbbec3706429e3f3f75c9c394db6b9c1bd v7-4a-013
 08eb573821869727e5951e6586207dfbe5fd982c v7-4a-014
+7a1b782ec64ac55052755ed72ff023093b246d96 v7-4a-015