Summary
The user is testing reference tasks in the Flyte community and encountered an undocumented error related to 'container_image', receiving an AttributeError about the '_container_image' attribute missing in the 'ReferenceTask' object. They registered tasks using a specific command and provided code for a workflow with two reference tasks, asserting this issue is a bug since the image should have been built. The user noted a related pull request will be merged tomorrow, and a beta release is expected next week. They also mentioned that reference tasks are now functioning as expected.