The application breaks when the last character is deleted

[bxlt1k]

There are emojioneArea with the following parameters

emojioneArea({
    pickerPosition: "bottom",
    filtersPosition: "bottom",
    tonesStyle: "square",
    autocomplete: false,
    attributes: {
        spellcheck: true,
        autocomplete: "on"
    }
});

In all browsers with the Google Chrome engine, there is such an error, if you delete the last character from textarea, the application freezes, but if you remove attributes, there is no such error. There are two scenarios of operation, when the setup opens and textarea initialization occurs immediately, this scenario works correctly and the second, when initialization occurs in the settings when adding a block with textarea, an error appears, the error may be related to initialization?

[carpii]

Can you reproduce it in jsfiddle?

https://jsfiddle.net/by5tvgej/

[bxlt1k]

@carpii I found a problem, along with the initialization of textarea, I initialize select2(), but I can't figure out what the reason is(

[bxlt1k]

@carpii @mervick
https://jsfiddle.net/rudbp8qw/3/
If you remove all the symbols, the application breaks, however, if you remove the attributes everything works.
In Google Chrome it breaks, in Firefox it works correctly