[SelectableTile] Selected state is out of sync when user do shift+click for multi-selection

[ZhiboMZhang]

The last selected item can lose selected state in certain scenario.

Steps to reproduce:

1. Build a view with list of selectable tile
2. Click on one tile and then hold shift to do multi-selection on tiles
3. Hold the shift key and select any tile again
   Bug -> if the tile was previously selected, the tile is deselected, even though the select props passed in indicate that the tile should persistent selection
   

Looked into the code base, the issue seems from here:
https://github.com/carbon-design-system/carbon-components-react/blob/master/src/components/Tile/Tile.js#L228
https://github.com/carbon-design-system/carbon-components-react/blob/master/src/components/Tile/Tile.js#L239-L247
When user click on the tile, the selected state doesn't respect the selected props value.

Environment

Operating system Mac OS

Browser Chrome

Automated testing tool and ruleset

Assistive technology used to verify

Detailed description

What version of the Carbon Design System are you using? "carbon-components": "10.17.0", "carbon-components-react": "7.17.0",

What did you expect to happen? The selected state should respect the selected props value passed in.

What happened instead? The selected state automatically toggled when user click on the tile

What WCAG 2.1 checkpoint does the issue violate?

Steps to reproduce the issue

1. Click on the fourth tile, it should select all the four tiles, but the last tile is toggled as deselected.

Please create a reduced test case in CodeSandbox

• React:
  https://codesandbox.io/s/s-m4yeb

Thanks Bill for helping me put up this codesandbox link. The critical line is at line 76.

Additional information

• Screenshots or code
  

• Notes

[emyarod]

imo the tiles should either be fully controlled (like Carbon checkboxes currently) or fully uncontrolled, rather than a mixture of the two

[emyarod]

I believe that shift click behavior is not supported out of the box by the multi select tile though