Function fill_precedes_snapshot_reconciled_position 

pub fn fill_precedes_snapshot_reconciled_position(
    cache: &Cache,
    report: &FillReport,
) -> bool

Returns whether report predates an open position for its instrument and account that a synthetic reconciliation order opened and that does not hold the fill’s trade.

The venue position report behind such a position already includes the fill, so applying it to the position would count the execution twice.