Fatal error when drawing bounding box in tile map

[lukasolson]

1. Create a tile map
2. Click on the rectangle bounding box tool
3. Draw a rectangle

You'll get a fatal error. It doesn't happen every time, but if you do it enough times, it's almost bound to happen. (See what I did there?)

Here's the error message:

Uncaught NotFoundError: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node. (http://localhost:5601/bower_components/leaflet/dist/leaflet.js:7)