diff --git a/hgext/convert/cvs.py b/hgext/convert/cvs.py
--- a/hgext/convert/cvs.py
+++ b/hgext/convert/cvs.py
@@ -153,7 +153,7 @@ class convert_cvs(converter_source):
                 sck.send("\n".join(["BEGIN AUTH REQUEST", root, user, passw,
                                     "END AUTH REQUEST", ""]))
                 if sck.recv(128) != "I LOVE YOU\n":
-                    raise NoRepo("CVS pserver authentication failed")
+                    raise util.Abort("CVS pserver authentication failed")
 
                 self.writep = self.readp = sck.makefile('r+')
 
diff --git a/hgext/mq.py b/hgext/mq.py
--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -924,8 +924,6 @@ class queue:
                 if line.startswith('diff --git'):
                     self.diffopts().git = True
                     break
-            patchf.seek(0)
-            patchf.truncate()
 
             msg = opts.get('msg', '').rstrip()
             if msg:
@@ -940,6 +938,10 @@ class queue:
                             ci += 1
                         del comments[ci]
                 comments.append(msg)
+
+            patchf.seek(0)
+            patchf.truncate()
+
             if comments:
                 comments = "\n".join(comments) + '\n\n'
                 patchf.write(comments)
diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -214,6 +214,9 @@ def clone(ui, source, dest=None, pull=Fa
             else:
                 raise util.Abort(_("clone from remote to remote not supported"))
 
+        if dir_cleanup:
+            dir_cleanup.close()
+
         if dest_repo.local():
             fp = dest_repo.opener("hgrc", "w", text=True)
             fp.write("[paths]\n")
@@ -226,8 +229,6 @@ def clone(ui, source, dest=None, pull=Fa
                 except:
                     checkout = dest_repo.changelog.tip()
                 _update(dest_repo, checkout)
-        if dir_cleanup:
-            dir_cleanup.close()
 
         return src_repo, dest_repo
     finally: