Setting the paramter "limit" in API endpoint /shows results in a server error

Sending a GET request like /api/v1/shows/?limit=10 results in a server error 500 whereas /api/v1/shows/ returns the expected result (a list of all shows). This only seems to happen with the shows endpoint. E.g. /api/v1/timeslots/?limit=10 works properly.

assigned to @nnrcschmdt

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closed with commit 020d1b31

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This was hard to track down, but the solution was simple.

mentioned in commit 020d1b31