Failed to remove lock: Received backend message CommandComplete while expecting ParseCompleteMessage

[valeneiko]

I noticed the following in my logs today:

Hangfire.PostgreSql.PostgreSqlDistributedLock[0]
      HangFire:locks:schedulepoller: Failed to remove lock
      Npgsql.NpgsqlException (0x80004005): Received backend message CommandComplete while expecting ParseCompleteMessage. Please file a bug.
         at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
         at Npgsql.NpgsqlDataReader.NextResult()
         at Npgsql.NpgsqlCommand.ExecuteReader(CommandBehavior behavior, Boolean async, CancellationToken cancellationToken)
         at Npgsql.NpgsqlCommand.ExecuteReader(CommandBehavior behavior, Boolean async, CancellationToken cancellationToken)
         at Npgsql.NpgsqlCommand.ExecuteNonQuery(Boolean async, CancellationToken cancellationToken)
         at Npgsql.NpgsqlCommand.ExecuteNonQuery()
         at Dapper.SqlMapper.ExecuteCommand(IDbConnection cnn, CommandDefinition& command, Action`2 paramReader) in /_/Dapper/SqlMapper.cs:line 2822
         at Dapper.SqlMapper.ExecuteImpl(IDbConnection cnn, CommandDefinition& command) in /_/Dapper/SqlMapper.cs:line 572
         at Dapper.SqlMapper.Execute(IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Nullable`1 commandTimeout, Nullable`1 commandType) in /_/Dapper/SqlMapper.cs:line 443
         at Hangfire.PostgreSql.PostgreSqlDistributedLock.TryRemoveDeadlock(String resource, IDbConnection connection, PostgreSqlStorageOptions options)

Environment:

• Hangfire.AspNetCore Version="1.7.23"
• HangFire.Core Version="1.7.23"
• Hangfire.PostgreSql" Version="1.8.4"
• PostgreSQL 13.3 with pg_bouncer
• .NET 5.0.6

Not entirely sure what else would be helpful for troubleshooting.