diff -r 8cdb671dbd0b -r 5748f404dad3 mercurial/repair.py
--- a/mercurial/repair.py	Mon Jan 15 15:20:02 2018 -0800
+++ b/mercurial/repair.py	Sun Jan 14 23:37:06 2018 -0800
@@ -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]