https://github.com/tidymodels/container/pull/1/commits/917196ff84e8556377c7d68fdbdcf254c117c39f removed support for the unknown mode. I'd vote we restore that functionality so that users who are constructing a workflow with a container don't have to specify the mode twice, once for the model and once for the container. If the container mode is unknown, the model mode can take precedence.
https://github.com/tidymodels/container/pull/1/commits/917196ff84e8556377c7d68fdbdcf254c117c39f removed support for the unknown mode. I'd vote we restore that functionality so that users who are constructing a workflow with a container don't have to specify the mode twice, once for the model and once for the container. If the container mode is unknown, the model mode can take precedence.