Describe the bug

Can't enter "0" speed in a wind level with Multi-level winds in OpenRocket 24.12 b1. Doing so throws a Java exception.

Upon dismissing the exception alert, the field has a 0 in it, but user has been warned to quit OpenRocket.

Expected behavior

One should be able to successfully enter a wind speed of 0. It can and does happen.

To Reproduce

1. Open a rocket (tried with TARC payload rocket from Examples)
2. Edit simulation
3. Create some wind levels (I did so automatically)
4. I changed "Direction" on some levels, but I don't think this is relevant Not relevant - tested.
5. Change "Speed" to 0 on some level
6. Be greeted by a Java exception alert.

Screenshots / .ork file

.ork file:

The .ork consists of the File>Open example>TARC payload rocket from OR's built ins

OpenRocket version

24.12 b1

What platform are you running on?

macOS

Additional context

macOS 14.7.1 Apple silicon M3 MAX, 36GB RAM

Just re-tested, without step 4 'changed "Direction"' - step 4 is not needed