Is this a bug?

Event data in 4.0.7 (1)
minimumResultsForSearch: -1 prevents dropdown from opening on iPhone (2)
Click on Browser Back Button Place holder missing? (1)
[solved] Dynamic option creation stops after 2 characters (2)
I find a bug about on version min.js (2)
Demos - Selecting option does not dismiss list of options (2)
Select2 with ajax not working on IE (1)
[Solved] Select2 Dropdowns close immediately after opening - Wordpress install (2)
Why does wiping the search field do a search with minimumInputLength? (6)
[A11y] Screen Reader Reads the Text Input Rather Than Option Values (3)
Can't focus on input after selecting on Internet Explorer (2)
Mac emoji keyboard shortcut strange behaviour for tagging (1)
Opening select2 (clicking or programmatically) locks up scrolling elsewhere on page (2)
Not Display option in Safari (1)
Focusout has stopped working (1)
Options aren't loaded (2)
Option doesn't update (2)
Dynamic Option Creation is not working for multiple select on iPad (1)
In a multiple select box only the last chosen value is transmitted (2)
The selected item does not erase after selecting a new (4)
templateResult + tags true (4)
OptGroup elements can not be selected (3)
Duplicate selection remove both values in Select2 autocomplete (2)
Width of select2 input is getting smaller when bootstrap panel is open by default (1)
Typing while a select2 element has focus does not jump to a matching option (4)
Lock scrollBar at bottom (4)
Copy+Paste three mail addresses (JSFiddle included) (5)
Incognito breaks select2? (2)
Setting global default ajax setting makes all select2 controls use ajax (4)
Dropdown select not working on mobile Safari (iOS) (2)