Dropdown stays open on iOS "Next Field"

When using select2 on iOS, and with a select2 field chosen, using the “Next Field” button to navigate leaves the select2 dropdown open. This has implications for both UX and for screen readers as the cursor is frequently obscured behind the dropdown.

In this example, I have navigated to the field labelled “Next field” using the native iOS next field button (looks like a “v”) above the keyboard.