Smack-bosh sends duplicate unavailable presence while disconnecting -- makes performance delay for HTTP response

https://github.com/igniterealtime/Smack/blob/master/smack-bosh/src/main/java/org /jivesoftware/smack/bosh/XMPPBOSHConnect…

Line 291 … to … 302 can be removed, because the presence was already sent before reaching this line number

otherwise check for current sent presence if any, before sending this presence

Thanks for reporting, fixed with https://github.com/igniterealtime/Smack/commit/1577fa1fcada9523d03a0d9fffad43e96 49938f4