Shift + drag & drop broken on windows

[mltucker]

Check that this is really a bug

• I confirm

Reproduction link

https://jquense.github.io/react-big-calendar/examples/index.html?path=/docs/addons-drag-and-drop--example-1

Bug description

The drag & drop demo works great for me when just clicking and dragging events around. And on macos when I shift+click to drag and drop, things work fine. However on windows, the behavior is very strange when pressing shift (or any other modifier key) before starting to drag and drop. Sometimes events disappear, and sometimes they just can't be dragged. For the demo app obviously this doesn't matter since shift+drag and drop doesn't have a special behavior. However, this functionality is used in my app, and it used to work! I updated from a very old version (back when react-dnd was used in react-big-calendar), so possibly this has been broken since the new d&d implementation. Thanks!

Expected Behavior

I expected to drag and dropping events to behave normally.

Actual Behavior

The event disappears and then reappears on next click, and similar strange behavior.

react-big-calendar version

1.11.0

React version

17.0.2

Platform/Target and Browser Versions

window chrome 121

Validations

• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Make sure this is a react-big-calendar issue and not an implementation issue

Would you like to open a PR for this bug?

• I'm willing to open a PR