Can't unset language on code blocks

Kind of a bug, potentially a feature request -

We noticed that with a Structured Text code block, it defaults to “No language” on creation. However, once you set a language on it (e.g. bash), you can’t set it back to “No language”. It’d be great to be able to do this, in the case than a language was accidentally set - currently we’re working around it by removing the code block and re-adding it.