diff -r aa84bc48c2f7 -r 27475ae67676 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Fri Jan 18 13:13:48 2019 -0800
+++ b/mercurial/scmutil.py	Wed Mar 20 11:42:02 2019 -0700
@@ -1205,7 +1205,7 @@
             wctx.copy(old, new)
 
 def getrenamedfn(repo, endrev=None):
-    if repo.ui.config('experimental', 'copies.read-from') == 'compatibility':
+    if copiesmod.usechangesetcentricalgo(repo):
         def getrenamed(fn, rev):
             ctx = repo[rev]
             p1copies = ctx.p1copies()