diff -r c618f7ebbcb5 -r 00a7f7b1af9c mercurial/debugcommands.py
--- a/mercurial/debugcommands.py	Thu Jun 01 08:32:24 2017 +0200
+++ b/mercurial/debugcommands.py	Sat May 20 15:02:30 2017 +0200
@@ -1313,6 +1313,8 @@
          ('', 'record-parents', False,
           _('record parent information for the precursor')),
          ('r', 'rev', [], _('display markers relevant to REV')),
+         ('', 'exclusive', False, _('restrict display to markers only '
+                                    'relevant to REV')),
          ('', 'index', False, _('display index of the marker')),
          ('', 'delete', [], _('delete markers specified by indices')),
         ] + cmdutil.commitopts2 + cmdutil.formatteropts,
@@ -1391,7 +1393,8 @@
         if opts['rev']:
             revs = scmutil.revrange(repo, opts['rev'])
             nodes = [repo[r].node() for r in revs]
-            markers = list(obsolete.getmarkers(repo, nodes=nodes))
+            markers = list(obsolete.getmarkers(repo, nodes=nodes,
+                                               exclusive=opts['exclusive']))
             markers.sort(key=lambda x: x._data)
         else:
             markers = obsolete.getmarkers(repo)