Timeline - Cancel Drag-and-Drop with ESC key

Hey everyone,

Sometimes I have the need to cancel a drag and drop operation in the timeline. Mostly when I accidentally dragged the wrong task or simply realize it's working out as intended. Under some conditions it is just impossible (or a pain) to drop it at the exact same spot.

I would love to see a simple keyboard shortcut (e.g. ESC) to just cancel the current action instead of dropping it in the wrong place and messing up my project timeline.

This would be in addition to the great request for a Save/Undo button for timeline 

Cheers, 
Bastian