Describe the problem

In the following roachtests, sometimes DDLs cause a "descriptor is being dropped" error. Ex:

CREATE TYPE schema1.enum113 AS ENUM ('fd', 'sfd');
***FAIL; Expected no errors, but got ERROR: descriptor is being dropped (SQLSTATE XXUUU)

Repros (roachtest)
#56230 (comment)
#56230 (comment)
#56230 (comment)
#56230 (comment)
#56235 (comment)
#56235 (comment)
#56230 (comment)
#56230 (comment)

Expected Behaviour
There should not be an error.