Default location type not respected on import/export field mapping screens

When importing or exporting data, it would seem the default location type setting is respected on some web browsers, but not others. If I go to the second step of the Import Contacts process in Firefox and select 'Email' or a Phone or Address field, the location dropdown that appears will have a default value that matches the default location type in CiviCRM's settings. But in other browsers, most notably Chrome, the location dropdown seems to always default to 'Home', no matter which location type is set as the default in the CiviCRM settings. This occurs for me with Chrome Version 20.0.1132.57 on Linux, but I can also supply information about other browsers where the same thing happens. I assume there is some compatibility problem with the JavaScript that is used to assign the default values. I've also tested this with the current demo site (CiviCRM 45802) and I get the same result: the list of locations defaults to the correct value in Firefox, but in Chrome it always defaults to 'Home'.