Bug: pushing a stacked branch connects multiple times

[John Arbash Meinel]

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I just did my first test using 'bzr push' with a stackable format to
Launchpad.

And I noticed that it ended up starting a new ssh connection 4 times.

Presumably it needs to get access to the stacked-on branch, and maybe
some other things, but it should really re-use the connection if possible.

Connected (version 2.0, client Twisted)
Authentication (publickey) successful!
Secsh channel 1 opened.
Using default stacking branch /~jelmer/bzr-svn/trunk at
bzr+ssh://bazaar.launchpad.net/%7Ejameinel/bzr-svn/
Connected (version 2.0, client Twisted)
Authentication (publickey) successful!
Secsh channel 1 opened.
Connected (version 2.0, client Twisted)
Authentication (publickey) successful!
Secsh channel 1 opened.
Connected (version 2.0, client Twisted)
Authentication (publickey) successful!
Secsh channel 1 opened.
Created new stacked branch referring to /~jelmer/bzr-svn/trunk.

John
=:->
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