[🐞] exception TypeError: Cannot read properties of null (reading '5') encountered after unbind

[techfg]

Describe the bug

After unbinding a map, the following exception is encountered when there is a queued mouse event that triggers after the unbind.

jquery.imagemapster.js:2642 
 Uncaught (in promise) TypeError: Cannot read properties of null (reading '5')
    at w.MapData.ensureNoHighlight (jquery.imagemapster.js:2642:19)
    at w.MapData.<anonymous> (jquery.imagemapster.js:2286:8)
    at i.clearEffects (jquery.imagemapster.js:2451:20)
    at jquery.imagemapster.js:2262:10
ensureNoHighlight	@	jquery.imagemapster.js:2642
(anonymous)	@	jquery.imagemapster.js:2286
i.clearEffects	@	jquery.imagemapster.js:2451
(anonymous)	@	jquery.imagemapster.js:2262
Promise.then (async)		
(anonymous)	@	jquery.imagemapster.js:2258
i.mouseout	@	jquery.imagemapster.js:2445
dispatch	@	jquery.min.js:2
v.handle	@	jquery.min.js:2

Reproduction

https://jsfiddle.net/techfg/2ysfwq7x/47/

Steps to reproduce

1. Go to https://jsfiddle.net/techfg/2ysfwq7x/47/
2. Open the developer console - This is required because jsFiddle doesn't output the exception in its built-in console area
3. Hover over any of the items in the vegetable tray to display a tooltip
4. Immediately click the Unbind button after completing step 3
5. Wait for 5 seconds - The exception is displayed in dev console
6. Clear the dev console logs
7. Click Reset button
8. Click Disable Tooltips button
9. Click Enable Highlight button
10. Hover over any of the items in the vegetable tray to display a tooltip
11. Immediately click the Unbind button after completing step 3
12. Wait for 5 seconds - The exception is displayed in dev console

Environment Info

Windows 11 Edge Version 124.0.2478.67 (Official build) (64-bit) but any browser will reproduce

Expected Behavior

No exception is encountered

Additional Information

No response