fix(InteractiveBrokers): Reject unsupported 4-leg ComboLegLimit orders (#9287)#9301
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Martin-Molinero merged 2 commits intoQuantConnect:masterfrom Feb 24, 2026
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Thank you @AhmedAli58!
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This pull request fixes issue #9287 by adding validation logic in InteractiveBrokersBrokerageModel to reject unsupported 4-leg ComboLegLimit orders before they are submitted to the InteractiveBrokers API, preventing invalid order submissions. It also introduces a clear user-facing rejection message and adds focused regression tests that verify both allowed and rejected scenarios for combo orders. This change improves order handling correctness for the InteractiveBrokers integration and includes unit tests to ensure future behavior remains correct.
Closes #9287