RPC method txpool_content crashed: unknown

[canepat]

Reported on Discord

Patrick [beaconcha.in]
since uprading from 3.0.2 to 3.2.2 we see this error in the logs

[EROR] [11-27|10:55:32.875] RPC method txpool_content crashed: unknown
[service.go:222 panic.go:792 txpool_grpc_server.go:128 txpool_grpc_server.go:142 pool.go:2727 txpool_grpc_server.go:139 txpool_client.go:57 txpool_api.go:57 value.go:584 value.go:368 service.go:227 handler.go:529 handler.go:479 handler.go:420 handler.go:240 handler.go:333 asm_amd64.s:1700]

[VBulikov]

canepat added Imp1 as Importance