tvalentyn commented on pull request #13202: URL: https://github.com/apache/beam/pull/13202#issuecomment-721851261
> Summarizing an an offline conversation with @robertwb: If you fuse two stages without a common parent, currently the parent gets set to None i.e. it gets promoted to a root transform. This is problematic because in some places we assume that there is exactly one root transform. Instead we should set the parent to the lowest common ancestor. Thanks, let's add this to a JIRA and tag the issue ID in PR description. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
