onGetList not called when isSelectable !== true

[techfg]

Describe the bug
When IM is configured with isSelectable !== true, the onGetList option is not triggered. However, if using boundList works as intended and the list is synchronized when using API as expected.

To Reproduce
Steps to reproduce the behavior:

1. Go to jsFiddle
2. onGetList is configured, isSelectable === false which results in list not being built and not visible to right of veggie tray

Expected behavior
onGetList behavior should be identical to boundList behavior - list should sync regardless of whether or not user can select an area (since API can still be used).

Screenshots
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Desktop (please complete the following information):
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Smartphone (please complete the following information):
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Additional context
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