--- a/hg
+++ b/hg
@@ -417,7 +417,6 @@ elif cmd == "verify":
             
         manifestchangeset[changes[0]] = n
         for f in changes[3]:
-            revisions += 1
             filelinkrevs.setdefault(f, []).append(i)
 
     ui.status("checking manifests\n")
@@ -468,6 +467,7 @@ elif cmd == "verify":
         fl = repo.file(f)
         nodes = { hg.nullid: 1 }
         for i in range(fl.count()):
+            revisions += 1
             n = fl.node(i)
 
             if n not in filenodes[f]:
@@ -505,10 +505,6 @@ elif cmd == "verify":
             nodes[n] = 1
 
         # cross-check
-        for flr in filelinkrevs[f]:
-            ui.warn("changeset rev %d not in %s\n" % (flr, f))
-            errors += 1
-            
         for node in filenodes[f]:
             ui.warn("node %s in manifests not in %s\n" % (hg.hex(n), f))
             errors += 1

--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -814,7 +814,7 @@ class localrepository:
         # pull off the changeset group
         self.ui.status("adding changesets\n")
         co = self.changelog.tip()
-        cn = self.changelog.addgroup(getgroup(), csmap, tr)
+        cn = self.changelog.addgroup(getgroup(), csmap, tr, 1) # unique
         changesets = self.changelog.rev(cn) - self.changelog.rev(co)
 
         # pull off the manifest group

--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -433,7 +433,7 @@ class revlog:
 
         yield struct.pack(">l", 0)
 
-    def addgroup(self, revs, linkmapper, transaction):
+    def addgroup(self, revs, linkmapper, transaction, unique = 0):
         # given a set of deltas, add them to the revision log. the
         # first delta is against its parent, which should be in our
         # log, the rest are against the previous delta.
@@ -463,7 +463,10 @@ class revlog:
             node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80])
             link = linkmapper(cs)
             if node in self.nodemap:
-                raise "already have %s" % hex(node[:4])
+                # this can happen if two branches make the same change
+                if unique:
+                    raise "already have %s" % hex(node[:4])
+                continue
             delta = chunk[80:]
 
             if not chain: