Problem doesn't depends on "--message-type". Few minutes ago I tried to use GMail UI to send message. I saw only one notification. I also tried to use "common" jabber account (on njs.netlab.cz) and there was also only one notification.
This means problem in my case occurs only when using sendxmpp + gtalk.
Here are the lines you needed:
(22:24:03) pidgin-libnotify: SOURCE activated 'im:prpl-jabber: userone. recipient% 40gmail. com%2Fdevoid: usertwo. sender% 40gmail. com%2Fgemini2CE F0B0A' userone. recipient% 40gmail. com%2Fdevoid: usertwo. sender% 40gmail. com%2FgeminiE55 8A939'
(22:24:07) pidgin-libnotify: SOURCE activated 'im:prpl-jabber:
Here is the command used by monitoring to send the message:
MESSAGE="test"
SUBJECT="test"
echo "$MESSAGE" | sendxmpp -t -o gmail.com --message-type chat -r gemini -u $USER -p $PASSWORD -j $SERVER $RCPT -s "$SUBJECT"
(sendxmpp version 1.22)
Problem doesn't depends on "--message-type". Few minutes ago I tried to use GMail UI to send message. I saw only one notification. I also tried to use "common" jabber account (on njs.netlab.cz) and there was also only one notification.
This means problem in my case occurs only when using sendxmpp + gtalk.