From 2c69b0c97d40f76363d20478cb799ce4b7518e56 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sat, 09 Dec 2023 00:55:40 +0000
Subject: [PATCH] fix: frontmatter coercion (empty string is falsy)

---
 quartz/plugins/transformers/frontmatter.ts |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/quartz/plugins/transformers/frontmatter.ts b/quartz/plugins/transformers/frontmatter.ts
index 017d3d1..6498a07 100644
--- a/quartz/plugins/transformers/frontmatter.ts
+++ b/quartz/plugins/transformers/frontmatter.ts
@@ -37,16 +37,16 @@
             })
 
             // tag is an alias for tags
-            if (data.tag) {
-              data.tags = data.tag
+            if (data.tag !== null) {
+              data.tags = data.tag.toString()
             }
 
             // coerce title to string
-            if (data.title) {
+            if (data.title !== null) {
               data.title = data.title.toString()
             }
 
-            if (data.tags && !Array.isArray(data.tags)) {
+            if (data.tags !== null && !Array.isArray(data.tags)) {
               data.tags = data.tags
                 .toString()
                 .split(oneLineTagDelim)

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