commit e8bc7c51b882b7c207685afcf2b6982ba547a7fc
Author: Qais Patankar <qaisjp@gmail.com>
Date: Sat Mar 21 19:12:30 2020 +0000
Fix #1039: messages sent to Slack being synced back (#1046)
This is a regression from https://github.com/42wim/matterbridge/pull/581#issuecomment-562937576
Behaves the same as https://github.com/matterbridge/slack/commit/95190f11bfb6405b0394b75a29bd1c1bb91f553e
diff --git a/bridge/slack/slack.go b/bridge/slack/slack.go
index 23c856b..89ff296 100644
--- a/bridge/slack/slack.go
+++ b/bridge/slack/slack.go
@@ -4987 +4988 @@ func (b *Bslack) prepareMessageOptions(msg *config.Message) []slack.MsgOption {
var attachments []slack.Attachment
// add a callback ID so we can see we created it
- attachments = append(attachments, slack.Attachment{CallbackID: "matterbridge_" + b.uuid})
+ const zeroWidthSpace = "\u200b"
+ attachments = append(attachments, slack.Attachment{CallbackID: "matterbridge_" + b.uuid, Fallback: zeroWidthSpace})
// add file attachments
attachments = append(attachments, b.createAttach(msg.Extra)...)
// add slack attachments (from another slack bridge)
