fix: frontmatter coercion (empty string is falsy)

Jacky Zhao

2023-12-09 2c69b0c97d40f76363d20478cb799ce4b7518e56

 quartz/plugins/filters/index.ts

@@ -1,2 +1,2 @@
export { RemoveDrafts } from './draft'
export { ExplicitPublish } from './explicit'
export { RemoveDrafts } from "./draft"
export { ExplicitPublish } from "./explicit"