[MB-24623] IndexCountScan operator not able to unmarshall the object

CREATE INDEX ix1 ON default(k1,k2);
PREPARE p1 FROM SELECT COUNT(1) FROM default WHERE k1 =10 AND k2 = 5;
Note down encoded plan. replace in the following curl command.

delete from system:prepareds where name = "p1"; OR
restart server OR kill cbq-engine OR send the encoded plan to another query node

curl -v http://localhost:8093/query/service -H "Content-Type: application/json" -d '

{"prepared":"p1","encoded_plan": "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"}

'