diff --git a/.hgtags b/.hgtags
index 331e13419b..be76d180e3 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1512,3 +1512,4 @@ ee48b3da9d53a487f3636df34cace6400d13f32c v7-3-172
 537e0102c0f9cc2c0656c298ed1534ef30176eb8 v7-3-175
 94f42ae4e4e66483fb6cc7305c61820b004c6182 v7-3-176
 66f2d62271fe77d4acdda5808bd0d3a45be3149c v7-3-177
+ac639ca9f58f7c71551c19090473395d81a021b6 v7-3-178