Error: syntax error at or near ")"

[AntonLocal]

Hi, when I upgraded dependencies in my project from loopback-connector-postgresql": "5.2.0" to version "5.2.1" - got this error for some of the requests:

loopback:connector:postgresql error: syntax error at or near ")"
    at TLSSocket.<anonymous> (…/node_modules/pg-protocol/dist/index.js:11:42)
    at TLSSocket.emit (events.js:400:28)
    at TLSSocket.emit (domain.js:470:12)
    at addChunk (internal/streams/readable.js:290:12)
    at readableAddChunk (internal/streams/readable.js:265:9)
    at TLSSocket.Readable.push (internal/streams/readable.js:204:10)
    at TLSWrap.onStreamRead (internal/stream_base_commons.js:188:23) {
  length: 91,
  severity: 'ERROR',
  code: '42601',
  detail: undefined,
  hint: undefined,
  position: '221',
  internalPosition: undefined,
  internalQuery: undefined,
  where: undefined,
  schema: undefined,
  table: undefined,
  column: undefined,
  dataType: undefined,
  constraint: undefined,
  file: 'scan.l',
  line: '1149',
  routine: 'scanner_yyerror'
}

After enabling debug output (DEBUG=loopback:connector:postgresql), I can see unexpected AND(()) in the request and additional parentheses after WHERE clause:

  loopback:connector:postgresql SQL: SELECT "id","name" FROM "public"."lang" WHERE (("id" IN ($1,$2,$3)) AND (())) ORDER BY "id"
  loopback:connector:postgresql Parameters: ["eng","fra","spa"] +2ms
  loopback:connector:postgresql error: syntax error at or near ")"

The only changes from 5.2.0 -> 5.2.1 which could possibly affect this behaviour:

Could you please check what happened and why there are so many parentheses in the query. Thank you.

Additional information

Node 14.17.5
LB3
loopback-connector-postgresql 5.2.1