--- a/mercurial/wireprotov2server.py	Wed Aug 07 20:10:08 2019 +0200
+++ b/mercurial/wireprotov2server.py	Wed Aug 07 20:10:24 2019 +0200
@@ -937,7 +937,7 @@
         followingdata = []
 
         if b'revision' in fields:
-            revisiondata = cl.revision(node, raw=True)
+            revisiondata = cl.rawdata(node)
             followingmeta.append((b'revision', len(revisiondata)))
             followingdata.append(revisiondata)