Bootstrap Multiselect Search not work correctly

Question

I'm working with multiselect dropdown enableFiltering.

But something went wrong. See below:

I had an option Hoàng Anh Hào

When I type Hoàng, Hoàng Anh Hào option not visible. But another option contains Hoàng still show.

When I type Hào or Anh, Hoàng Anh Hào show again.

My js code:

$(item.selector).multiselect({
                    includeSelectAllOption: true,
                    enableFiltering: true,
                    enableCaseInsensitiveFiltering: true,
                    maxHeight: 400,
                    buttonWidth: '100%',
                    onChange: function (option, checked) {
                        // do something
                    }
});

I'm working with asp.net so I can not put some example.

Why? May it cause of Unikey? How can I fix it?

Answer 1

Visit https://r12a.github.io/apps/conversion/ to see the issue.

1. Paste:

   Hoàng Anh Hào

   Hoàng Anh Hào

2. Click convert, result show two different results :(

May that field was pasted from somewhere.

I manualy type Hoàng Anh Hào to update in DB and problem has gone!