Bug 216479

## 🐛 Bug Report

SCENARIO: Invoke the `findElement` method of an element reference that's gone stale
EXPECT: StaleElementReferenceException
ACTUAL: NoSuchElementException

## To Reproduce

Detailed steps to reproduce the behavior:
* Acquire a reference to an element that has children
* Refresh the browser session
* Search for a child of the element reference

With the Java code below:
* [getTagName] throws `StaleElementReferenceException`
* [findElement] throws `NoSuchElementException`

## Expected behavior

This should produce `StaleElementReferenceException`

## Actual behavior

**SafariDriver** throws `NoSuchElementException`

## Test script or set of commands reproducing this issue

```java
package com.nordstrom.automation.selenium.model;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebDriverException;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.safari.SafariDriver;

public class SafariStale {
    
    private WebDriver driver;
    
    @Before
    public void before() {
        driver = new SafariDriver();
    }
    
    @Test
    public void testStale() {
        driver.get("https://www.w3schools.com/html/html_tables.asp");
        WebElement table = driver.findElement(By.cssSelector("table#customers"));
        table.getTagName();
        table.findElement(By.cssSelector("tr"));
        driver.navigate().refresh();
        try {
            table.getTagName();
        } catch (WebDriverException e) {
            System.out.printf("[getTagName] throws %s\n", e.getClass().getSimpleName());
        }
        try {
            table.findElement(By.cssSelector("tr"));
        } catch (WebDriverException e) {
            System.out.printf("[findElement] throws %s\n", e.getClass().getSimpleName());
        }
    }
    
    @After
    public void after() {
        driver.quit();
    }
}
```

## Environment

OS: MacOS 10.15.4
Browser: Safari
Browser version: 13.1 (15609.1.20.111.8)
Browser Driver version: Included with Safari 13.1 (15609.1.20.111.8)
Language Bindings version: 3.141.59