Sync commit fixing flac metadata (#307)

Author: huchenlei

src/scripts/metadata/flac.ts

@@ -59,9 +59,10 @@ function parseVorbisComment(dataView: DataView): Record<string, string> {
     const comment = getString(dataView, offset, commentLength)
     offset += commentLength
 
-    const [key, value] = comment.split('=')
+    const ind = comment.indexOf('=')
+    const key = comment.substring(0, ind)
 
-    comments[key] = value
+    comments[key] = comment.substring(ind + 1)
   }
 
   return comments