getCouplerYaw returns incorrect position if two trains are offset

[anatawa12]

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Descrive the bug

Original message from Marat_Madiev

not such a critical bug but when 2 trains offset (they do it at the beginning of the curve) the function entity.getCouplerYaw() stops connecting coupler

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To Reproduce

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Expected Behavior

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Actual Behavior

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OS

N/A

Minecraft Forge Version

N/A

fixRTM Version

N/A(should be latest)

Other Mods

No response