Fix CHANGELOG double-update

[ci skip] Signed-off-by: Rémy Coutable <remy@rymai.me>

Fix CHANGELOG double-update
bc16d767 · Rémy Coutable · 74cd56b5 · bc16d767
Verified Commit bc16d767 authored 8 years ago by Rémy Coutable
--- a/CHANGELOG
+++ b/CHANGELOG
 Please view this file on the master branch, on stable branches it's out of date.
-v 8.13.0 (unreleased)
-  - Speed-up group milestones show page
  
 v 8.13.0 (unreleased)
+  - Speed-up group milestones show page
  
 v 8.12.1 (unreleased)