Repeated queries on the same instance of Selection

In version 2.1.0 I discovered the bad behavior after repeated queries on the same instance of Nette\Database\Selection with cached columns from previous request.

First request:

$selection = $context->table('test')->limit(3); // $context is instance of Nette\Database\Context

foreach ($selection as $row) {
	$row->id;
}

Queries:

SELECT `id` FROM `test` LIMIT 3
// ok: returns rows [1, 2, 3]

Second request:

$selection = $context->table('test')->limit(3);

foreach ($selection as $row) {
	$row->id;
	$row->name; // we added $row->name
}

foreach ($selection->limit(3, 3) as $row) { // new query on the same selection
	$row->id;
}

Queries:

SELECT `id` FROM `test` LIMIT 3
// ok: returns rows [1, 2, 3]

SELECT * FROM `test` WHERE (`test`.`id` IN (1, 2, 3))
// ok: returns refreshed rows [1, 2, 3]

SELECT * FROM `test` WHERE (`test`.`id` IN (1, 2, 3)) LIMIT 3 OFFSET 3
// fail: nothing returns
// it should be: 'SELECT * FROM `test` LIMIT 3 OFFSET 3' and returns [4, 5, 6]