error when requesting multiple blocks with get_blocks API

[loon3]

The following method...

{
	"method": "get_blocks",
	"jsonrpc": "2.0",
	"params": {
        "block_indexes" : [800000, 800001]
	},
	"id": 0
}

returns the following error...

{
    "error": {
        "code": -32000,
        "message": "Server error",
        "data": {
            "type": "SQLError",
            "args": [
                "SQLError: row value misused"
            ],
            "message": "SQLError: row value misused"
        }
    },
    "id": 0,
    "jsonrpc": "2.0"
}

Calling the same method with a single block specified "block_indexes" : [800000] appears to return the correct block and message information.

[ouziel-slama]

Should be fixed with #1630