Merge remote-tracking branches 'origin/main_laptop_1' and 'origin/sub_laptop_5' into sub_laptop_2

resources/tester/spreadsheet/spreadsheet_b_test_entry.ts

@@ -441,6 +441,16 @@ ok(
   fmt(frac(2n), '_-[$€-2]* #,##0.00_-;-[$€-2]* #,##0.00_-;_-[$€-2]* "-"??_-') === " €2.00 ",
   fmt(frac(2n), '_-[$€-2]* #,##0.00_-;-[$€-2]* #,##0.00_-;_-[$€-2]* "-"??_-'),
 );
+ok(
+  "회계형 0 구역 '-'?? 는 자리만(0 안 보임)",
+  fmt(frac(0n), '_-[$-412]* #,##0.00_-;-[$-412]* #,##0.00_-;_-[$-412]* "-"??_-') === " -   ",
+  JSON.stringify(fmt(frac(0n), '_-[$-412]* #,##0.00_-;-[$-412]* #,##0.00_-;_-[$-412]* "-"??_-')),
+);
+ok(
+  "통화 로캘 태그만([$-412] · 기호 없음)은 통화 기호를 안 보임",
+  !fmt(frac(2n), "[$-412]#,##0.00").includes("₩") && fmt(frac(2n), "[$-412]#,##0.00") === "2.00",
+  fmt(frac(2n), "[$-412]#,##0.00"),
+);
 ok("따옴표 접두·접미", fmt(frac(800n), '"φ"###') === "φ800", fmt(frac(800n), '"φ"###'));
 ok(
   "음수 회계형",