bot.replyPrivateDelayed can't send ephemeral message in response to button action

[sundeepgupta]

Lets say X does a slash command that causes our app to post a message as X (i.e. as_user is true) in the channel. The message contains an interactive message button. Now Y comes along and clicks the button. Our app responds to Y using replyPrivateDelayed with msg object of {"text": "hello"}. In other words, we want to reply to Y with "hello" ephemerally. We don't want to update/delete X's message, it should remain in the channel.

The result we're seeing is X replaces the original post with the button with a plain text post, "hello".

After experimenting more, it turns out that we also need to msg.replace_original = false to get the expected behaviour.

I created a branch with a simple fix, however not sure if this is the best way to go about it. Also it would be a breaking API change.

[sundeepgupta]

Update: we can can always set replace_original to false so we don't need to pass in an an extra argument. Thereby, fixing without breaking existing API. Created a PR: #446

[sundeepgupta]

This is not an issue: See benbrown's comment: #446