Also I've noticed, that for `BrowserKitDriver` and `GoutteDriver` some tests in `GeneralDriverTest` class were failing even before I've changed that form submit related stuff. For example:

```
2) Tests\Behat\Mink\Driver\BrowserKitDriverTest::testMultiselect
Behat\Mink\Exception\UnsupportedDriverActionException: Element selection check is not supported by Behat\Mink\Driver\BrowserKitDriver

.../MinkBrowserKitDriver/vendor/behat/mink/src/Behat/Mink/Driver/CoreDriver.php:212
.../MinkBrowserKitDriver/vendor/behat/mink/src/Behat/Mink/Element/NodeElement.php:235
.../MinkBrowserKitDriver/vendor/behat/mink/tests/Behat/Mink/Driver/GeneralDriverTest.php:484
```