Filtering coupled with preserveSelectOrder and showMovementButtons behaves badly

[schwer]

Describe the bug When enabling the movement buttons and preserving the select order, along with filtering the selected options, you will find the movement buttons behave erratically.

Reproduction steps

TODO

Screenshots If applicable, add screenshots to help explain your problem.

[priyanka0309]

Facing with same issue. Any update on this?

[schwer]

Sadly, I haven't had time to fix. This requires some significant rework last time I looked.

[jakezatecky]

This issue is much more stable with the fix for #142. Filtering and preserving select order was resulting in improper resolution of highlighted values.

In v2.4-dev, the behavior is no longer erratic, but moving up/down now moves the position relative to the unfiltered list, rather than relative filtered list position. While better, I still need to the component smart enough to handle this relative to the filtered list to be more intuitive to the user.