Multi-Value Select Boxes show selected options

[fafejtao]

There are 3 bugs in version 4.0.x when using multi-value select with optgroup.
Version 3.5.3 works correctly.

Here is source code
version 4.0.x: bug
https://codepen.io/fafejtao/pen/mdyYJbP

version 3.5.3 works correctly
https://codepen.io/fafejtao/pen/qBEGdpd

https://github.com/fafejtao/select2_bug

1. selected options are still visible in autocomplete
   • Steps to reproduce:
   1. type Alaska
   2. press enter to select Alaska
   3. type Alaska again - expected: option is not visible, actual: option is still visible
2. removing selected option opens autocomplete
   • Steps to reproduce:
   1. type Alaska
   2. press enter to select Alaska
   3. click to 'x' to remove Alaska - expected: option is removed, actual: option is removed and autocomplete is shown
3. mouse click and keyboard enter behave differently
   • Steps to reproduce:
   1. type Alaska
   2. press enter to select Alaska
   3. type Alaska again (due to bug#1 this option is still available)
   4. press enter (nothing happens)
   5. type Alaska again (due to bug#1 this option is still available)
   6. click mouse to select Alaska - expected: should't be available, actual: removes option from selected options

[kevin-brown]

It's been almost 5 years since the 4.x line of Select2 was released. A lot has changed during that time.

1. selected options are still visible in autocomplete

That's an accessibility feature, not a bug. There is no way to remove arbitrary options without a mouse if the options aren't visible in the dropdown.

2. removing selected option opens autocomplete

That's a feature, not a bug. You can find out how to disable it at #3320 (comment).

3. mouse click and keyboard enter behave differently

This is an accessibility feature, not a bug. CTRL + SPACE handles toggling a selected option (so both select and unselect). ENTER only selects options. Otherwise you could hold down ENTER and unselect all of your options by mistake.