--- a/mercurial/hgweb/hgweb_mod.py	Sat Nov 17 19:11:45 2018 +0900
+++ b/mercurial/hgweb/hgweb_mod.py	Mon Nov 12 21:10:51 2018 +0900
@@ -214,6 +214,7 @@
             else:
                 u = uimod.ui.load()
                 extensions.loadall(u)
+                extensions.populateui(u)
             r = hg.repository(u, repo)
         else:
             # we trust caller to give us a private copy