The issue’s been fixed in our codebase, but there’s no timeline on 7.9.15. If you’re using template canvases, you should roll back. It’ll certainly be a few months before 7.9.15, and I would definitely not recommend putting one of the ‘weekly’ releases into production without consideration of the tradeoffs. In this case, you can just upgrade the Vision module once we have a new version available, without having to upgrade the whole platform.
In general, and for anyone who happens to read this in the future, be aware that this ‘weekly’ release process for 7.9 doesn’t have the same guarantees of QA/regression testing that full releases will have. But, they’ll still be an option if you ‘need’ a particular bug fix more urgently.