diff --git a/mercurial/repair.py b/mercurial/repair.py
--- a/mercurial/repair.py
+++ b/mercurial/repair.py
@@ -222,8 +222,6 @@
             if not repo.ui.verbose:
                 repo.ui.popbuffer()
             f.close()
-        repo._phasecache.invalidate()
-
 
         with repo.transaction('repair') as tr:
             bmchanges = [(m, repo[newbmtarget].node()) for m in updatebm]