When using a case expression with an else clause in inside a match
expression, the expander complains about case having a bad syntax.
However, the use of case expressions outside of match are fine. Is
there anyway to get around this?

Currently, I just replace it with another match.

#lang racket/base

(require racket/match)

(match 6
  [else
   (case 5
     [else 7])])

#|
unsaved editor:8:6: case: bad syntax (not a datum sequence) at: else
in: (case 5 (else 7))
  #(78 4)
|#

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