fix: Always send presence unavailable when leaving a MUC.

[codecov[bot]]

Codecov Report

Merging #1122 (035dfbe) into master (067e575) will decrease coverage by 0.02%. The diff coverage is 0.00%.

Additional details and impacted files

[](https://app.codecov.io/gh/jitsi/jicofo/pull/1122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi) ```diff @@ Coverage Diff @@ ## master #1122 +/- ## ============================================ - Coverage 27.86% 27.85% -0.02% Complexity 473 473 ============================================ Files 128 128 Lines 7783 7788 +5 Branches 1064 1064 ============================================ Hits 2169 2169 - Misses 5342 5347 +5 Partials 272 272 ``` | [Files](https://app.codecov.io/gh/jitsi/jicofo/pull/1122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi) | Coverage Δ | | |---|---|---| | [...n/kotlin/org/jitsi/jicofo/xmpp/muc/ChatRoomImpl.kt](https://app.codecov.io/gh/jitsi/jicofo/pull/1122?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi#diff-amljb2ZvLWNvbW1vbi9zcmMvbWFpbi9rb3RsaW4vb3JnL2ppdHNpL2ppY29mby94bXBwL211Yy9DaGF0Um9vbUltcGwua3Q=) | `0.00% <0.00%> (ø)` | | ------ [Continue to review full report in Codecov by Sentry](https://app.codecov.io/gh/jitsi/jicofo/pull/1122?src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://app.codecov.io/gh/jitsi/jicofo/pull/1122?src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi). Last update [067e575...035dfbe](https://app.codecov.io/gh/jitsi/jicofo/pull/1122?src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=jitsi).