Crashing when editing a sign - replicable

[ShubiMaja]

https://discord.com/channels/1289397978737676329/1301933224406290583

Crash log will be included below.
The crash occurs when editing a sign where a single line of text is too long to fit on one line of the sign. Pressing spacebar to separate the line of text triggers the crash.

Jakikazu [Tremontaine]
6 KB
Some more information!
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I start with the sign editor like this. Then, I press "delete".
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The result is this! Notice how the cursor is not in the correct place. If I were to press spacebar right now, the game would crash.
If I click and move the cursor here...
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Pressing spacebar does not crash the game and the sign editor works correctly.
Very strange.
If it's important, I'm using charcoal to edit the sign.