Loading graph while Ocean heat diffusivity is set to 0 disconnects you from the server

[breathingfire]

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Submitter:

Describe the bug
Loading graph while Ocean heat diffusivity is set to 0 disconnects you from the server.

To Reproduce
Steps to reproduce the behavior:

1. Go to Explore Hector
2. Set Ocean heat diffusivity to 0
3. Click the load graph button
4. Be disconnected

Expected behavior
To not be disconnected.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows 10 (also happened on Windows 11 computers)
• Browser [e.g. chrome, safari] Firefox
• Version [e.g. 22] 144.0 (64-bit)
• (also Chrome Version 142.0.7444.61, Windows 10)

Smartphone (please complete the following information):

• Device: [e.g. iPhone6] Galaxy S24 FE
• OS: [e.g. iOS8.1] Android 16, One UI 8.0
• Browser [e.g. stock browser, safari] Firefox
• Version [e.g. 22] 144.0.2

Additional context
Add any other context about the problem here.
If this is causing math issues that break Hector, you should probably change the UI to only go down to 0.1, because that works just fine.