[Pidgin] #17010: Group chat (XMPP): message is sent multiple times

[Pidgin]

#17010: Group chat (XMPP): message is sent multiple times
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 Reporter:  thesourcehim  |      Owner:  deryni
     Type:  defect        |     Status:  new
Milestone:                |  Component:  XMPP
  Version:  2.10.12       |   Keywords:
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 Problem appears when for some reason pidgin connects to one conference
 multiple times. You can force this by clicking connect on chat entry
 context menu. Each click on connect adds another copy of all following
 messages. For example, if you press connect 5 times on already connected
 chat and then send 'Hello' to chat, Hello is going to be displayed 6 times
 in a row. The same thing with any messages sent by other chat users,
 everything is multiplied. Other users (with different clients) don't see
 those duplicates though, only pidgin shows them.

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Ticket URL: <https://developer.pidgin.im/ticket/17010>
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