[Bug] Fix panic in fee estimator from reorgs #434
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zquestz
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cpacia
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Dec 9, 2020
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Quick fix based on the conversation at btcsuite/btcd#1660.
Basically the cause of the double unlock is not really a mutex issue, but a defer issue due to an out of index panic in the fee estimator. This just puts a guard on the index value. When a more robust fix is available we can use that, but with BCH we don't really need a fee estimator to be perfect. =)