--- a/hgext3rd/evolve/obsdiscovery.py	Mon Mar 13 16:05:33 2017 -0700
+++ b/hgext3rd/evolve/obsdiscovery.py	Mon Mar 13 16:53:42 2017 -0700
@@ -147,7 +147,8 @@
 
 def _canobshashrange(local, remote):
     return (local.ui.configbool('experimental', 'obshashrange', False)
-            and remote.capable('_evoext_obshashrange_1'))
+            and remote.capable('_donotusemeever_evoext_obshashrange_1'))
+
 
 def _obshashrange_capabilities(orig, repo, proto):
     """wrapper to advertise new capability"""
@@ -155,7 +156,7 @@
     enabled = repo.ui.configbool('experimental', 'obshashrange', False)
     if obsolete.isenabled(repo, obsolete.exchangeopt) and enabled:
         caps = caps.split()
-        caps.append('_evoext_obshashrange_1')
+        caps.append('_donotusemeever_evoext_obshashrange_1')
         caps.sort()
         caps = ' '.join(caps)
     return caps
@@ -324,7 +325,7 @@
     bundler = bundle2.bundle20(ui, bundle2.bundle2caps(remote))
     capsblob = bundle2.encodecaps(bundle2.getrepocaps(repo))
     bundler.newpart('replycaps', data=capsblob)
-    bundler.newpart('_evoexp_obsrangehash_0', data=gen())
+    bundler.newpart('_donotusemeever_evoext_obshashrange_1', data=gen())
 
     stream = util.chunkbuffer(bundler.getchunks())
     try:
@@ -341,11 +342,11 @@
         if exc.hint is not None:
             ui.status(_('remote: %s\n') % ('(%s)' % exc.hint))
         raise error.Abort(_('push failed on remote'))
-    for rep in op.records['_evoexp_obsrangehash_0']:
+    for rep in op.records['_donotusemeever_evoext_obshashrange_1']:
         yield mapping[rep['key']], rep['value']
 
 
-@bundle2.parthandler('_evoexp_obsrangehash_0', ())
+@bundle2.parthandler('_donotusemeever_evoext_obshashrange_1', ())
 def _processqueryrange(op, inpart):
     assert op.reply is not None
     replies = []
@@ -357,16 +358,16 @@
         rhash = _range(op.repo, r, index).obshash
         replies.append(data + rhash)
         data = inpart.read(24)
-    op.reply.newpart('reply:_evoexp_obsrangehash_0', data=iter(replies))
+    op.reply.newpart('reply:_donotusemeever_evoext_obshashrange_1', data=iter(replies))
 
 
-@bundle2.parthandler('reply:_evoexp_obsrangehash_0', ())
+@bundle2.parthandler('reply:_donotusemeever_evoext_obshashrange_1', ())
 def _processqueryrangereply(op, inpart):
     data = inpart.read(44)
     while data:
         key = data[:24]
         rhash = data[24:]
-        op.records.add('_evoexp_obsrangehash_0', {'key': key, 'value': rhash})
+        op.records.add('_donotusemeever_evoext_obshashrange_1', {'key': key, 'value': rhash})
         data = inpart.read(44)
 
 ##################################