diff -r 4ef472b975ff -r 10e162bb9bf5 mercurial/wireproto.py
--- a/mercurial/wireproto.py	Wed Sep 20 18:29:10 2017 +0200
+++ b/mercurial/wireproto.py	Sun Sep 24 21:27:18 2017 +0200
@@ -207,6 +207,7 @@
 gboptsmap = {'heads':  'nodes',
              'common': 'nodes',
              'obsmarkers': 'boolean',
+             'phases': 'boolean',
              'bundlecaps': 'scsv',
              'listkeys': 'csv',
              'cg': 'boolean',