[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v0.12.8-rc.2...v0.12.8) * Revert "affix copyButton so that it doesn't get scrolled horizontally" [\#2013](https://github.com/matrix-org/matrix-react-sdk/pull/2013) * don't fire share dialog when clicking timestamp of event [\#2017](https://github.com/matrix-org/matrix-react-sdk/pull/2017) * when the user switches room, close room settings [\#2019](https://github.com/matrix-org/matrix-react-sdk/pull/2019)