[Buildbot] #3505: Cases of Interpolate failing to render properly in cases of replacements (-, ~)

[Buildbot trac]

#3505: Cases of Interpolate failing to render properly in cases of replacements
(-, ~)
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Reporter:  gracinet   |       Owner:
    Type:  undecided  |      Status:  new
Priority:  major      |   Milestone:  undecided
 Version:  0.8.12     |  Resolution:
Keywords:             |
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Comment (by gracinet):

 The Interpolate result looks actually like this: `abc_<object object at
 0xf60e2300>`.
 Within a `ShellCommand`, on 0.8.12 this goes down all the way and is
 visible in the web interface.

 On 0.9, I tracked it down to the `Connection` instance's
 `remoteStartCommand()` and something further yet down the line replaces it
 with `abc_`.

 On my experimental-future-production instance of 0.9, this occurs
 systematically, although I don't use a single reload, and I checked that
 indeed the `_notHasKey` changed between `Interpolate` instantiation and
 evaluation.

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Ticket URL: <http://trac.buildbot.net/ticket/3505#comment:1>
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