Prevent an infinite loop when changing the country select and there is no 'NL' option in the select box
Prevent an infinite loop when changing the country select and there is no 'NL' option in the select box

The script will result in an endless recursion when there is no option with
the value 'NL' in the select element, as the value of the select is still
empty after setting its value to 'NL'

ottonet/PostcodeNl_Api_MagentoPlugin,ottonet/PostcodeNl_Api_MagentoPlugin,postcode-nl/PostcodeNl_Api_MagentoPlugin,postcode-nl/PostcodeNl_Api_MagentoPlugin,ottonet/PostcodeNl_Api_MagentoPlugin,postcode-nl/PostcodeNl_Api_MagentoPlugin