[Edit] Retracting my comment below, after the parent comment was edited to provide more context.

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This quote doesn't seem representative of the whole story that is easily discoverable in the abstract.

> Surprisingly, our results show that women's contributions tend to be accepted more often than men's. However, when a woman's gender is identifiable, they are rejected more often. Our results suggest that although women on GitHub may be more competent overall, bias against them exists nonetheless.