[MacPorts] #52752: trac: send fewer emails when replacing an attachment

[MacPorts]

#52752: trac: send fewer emails when replacing an attachment
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  Reporter:  RJVB            |      Owner:  admin@…
      Type:  enhancement     |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  server/hosting  |    Version:
Resolution:                  |   Keywords:
      Port:                  |
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Comment (by raimue):

 Replying to [comment:5 RJVB]:
 > [...] I'm certain I never got 2 email when I replaced a ticket
 attachment. So that's a regression w.r.t. the previous version MacPorts
 used.

 The previous version was Trac 0.12 which did not send any notifications at
 all on attachment changes. Now we use Trac 1.0 which has this new feature.

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Ticket URL: <https://trac.macports.org/ticket/52752#comment:6>
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