\dC+ command in SQL shell gives an error

**Describe the problem**

In `master` builds using `cockroach demo` I am able to list the type casts using `\dC` but `\dC+` displays the following error:

~~~
demo@127.0.0.1:26257/movr> \dC+
List of casts:
ERROR: column "c.tableoid" does not exist
SQLSTATE: 42703
~~~

According to #88061 this behavior should work.

**To Reproduce**

1. Pull latest `master`.
2. Build using `/dev build short`.
3. Start demo using `./cockroach demo`.
4. Run `\dC` to show the type casts.
5. Run `\dC+` and see the error.

**Expected behavior**
The output of `\dC` with an additional **Descriptions** column.

Jira issue: CRDB-25249

Start with the SQL shell entry points for the \dC and \dC+ commands and reproduce the failure with ./cockroach demo as described. Compare the queries used by both commands, focusing on the c.tableoid reference; done means \dC+ succeeds and includes the additional Descriptions column without an error.

Written by the indexing model from the issue text.