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When you edit a message and repost the contents of its first revision, the repost is eaten up by chat.

Steps to reproduce:

  • Join any chat room
  • Post something. Let's say you post abcd
  • Edit that to something else. For example, ---
  • Try to post abcd again. The green (pending) message will show up, but when the response is received, it disappears (the server spits out {"id":null,"time":null} as the response)

This happens more often than you think. Many a time I post something, only to realize that I want to use the magic separator (---) to separate it from a previous block. So I up-arrow, Ctrl-X, and type ---, and then I repost the cut text. Which gets eaten up by the server -- making a small change to the repost fixes things.

  • 2
    Chat hiding duplicate messages is intentional, I think, although I can't find a reference now. Possibly it shouldn't do that if the previous message was edited – Michael Mrozek Jun 29 '13 at 20:12
  • Hm, no repro, but maybe I'm just too slow on mobile. Are you sure the edit went through before you posted the contents again? Like @MichaelMrozek said, it will intentionally eat consecutive duplicates if you post them too quickly. – Tim Stone Jun 29 '13 at 20:29
  • @TimStone Just tried it, the response is received. – Manishearth Jun 29 '13 at 21:07
  • 1
    It turns out that you even asked for that to be the case before, @MichaelMrozek. Also, for reference, here's a reference. – Tim Stone Jun 30 '13 at 1:55
  • @TimStone Ah, I thought I'd posted about it before, but I couldn't find a meta question – Michael Mrozek Jun 30 '13 at 2:01
  • Can still reproduce this issue. I've edited the title to make it more descriptive. – bwDraco Jan 11 '16 at 19:56

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