diff -r 638a241202a3 -r be3f33f5e232 mercurial/logcmdutil.py
--- a/mercurial/logcmdutil.py	Thu Mar 15 21:49:33 2018 +0900
+++ b/mercurial/logcmdutil.py	Thu Mar 15 21:52:47 2018 +0900
@@ -288,7 +288,7 @@
         t = formatter.maketemplater(self.repo.ui, '{join(obsfate, "\n")}',
                                     defaults=templatekw.keywords,
                                     resources=tres)
-        obsfate = t.renderdefault({'ctx': ctx, 'revcache': {}}).splitlines()
+        obsfate = t.renderdefault({'ctx': ctx}).splitlines()
 
         if obsfate:
             for obsfateline in obsfate:
@@ -856,7 +856,7 @@
     templ = formatter.maketemplater(ui, spec, defaults=templatekw.keywords,
                                     resources=tres)
     def formatnode(repo, ctx):
-        props = {'ctx': ctx, 'repo': repo, 'revcache': {}}
+        props = {'ctx': ctx, 'repo': repo}
         return templ.renderdefault(props)
     return formatnode