fix: correct selection of the `iter_raw_references` branch depending on the dialect

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Benchmark for a3a5cf8

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| Test | Base | PR | % | |------|--------------|------------------|---| | DepthMap::from_parent | 151.9±5.71µs | 150.9±2.46µs | -0.66% | | fix_complex_query | **14.4±0.13ms** | 14.6±0.08ms | **+1.39%** | | parse_complex_query | 4.9±0.07µs | 4.9±0.04µs | 0.00% | | parse_expression_recursion | 10.0±0.07µs | **9.7±0.09µs** | **-3.00%** | | parse_simple_query | 1466.7±38.80ns | 1455.7±62.83ns | -0.75% |