替换字体无法选择替换后的字体weight

[viviyong88]

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• [x] OS Version: macOS (10.13.6)
• [x] Sketch Version: v50.0+

Issues below

你好，在使用“替换字体”这个功能时，无法选择替换后的字体weight，比如pingfang字体的Medium或Bold无法进一步选择，默认会全部替换为regular，求大大解决，谢谢！