Investigate flakey test: test_terraform_version_compatibility_retains_state

This failed in 62d5d966

=================================== FAILURES ===================================
_____ TestModuleSearch.test_terraform_version_compatibility_retains_state ______
self = <test.selenium.test_module_search.TestModuleSearch object at 0xffff85a0f130>
    def test_terraform_version_compatibility_retains_state(self):
        """Test terraform compatiblity input is retained between page loads"""
        self.selenium_instance.delete_all_cookies()
    
        # Search for modules
        self.selenium_instance.get(self.get_url('/modules/search?q='))
    
        # Inspect and enter Terraform version into target Terraform input and update
        terraform_input = self.selenium_instance.find_element(By.ID, 'search-terraform-version')
        assert terraform_input.get_attribute("value") == ""
        terraform_input.send_keys("5.2.6-unittest")
    
        # Click update
        self.selenium_instance.find_element(By.ID, 'search-options-update-button').click()
    
        # Reload page
        self.selenium_instance.get(self.get_url('/modules/search?q='))
        # Check terraform version is still present
>       assert self.selenium_instance.find_element(By.ID, 'search-terraform-version').get_attribute("value") == "5.2.6-unittest"
E       AssertionError: assert '' == '5.2.6-unittest'
E         - 5.2.6-unittest
test/selenium/test_module_search.py:309: AssertionError
=============================== warnings summary ===============================