onthisday: fix on year boundaries (fix #333)

src/components/top-matter/OnThisDay.vue

@@ -124,20 +124,27 @@ export default defineComponent({
       this.years = [];
 
       let currentYear = 9999;
+      let currentText = "";
 
       for (const photo of photos) {
         const dateTaken = utils.dayIdToDate(photo.dayid);
         const year = dateTaken.getUTCFullYear();
         photo.key = `${photo.fileid}`;
 
+        // DateTime calls are expensive, so check if the year
+        // itself is different first, then also check the text
         if (year !== currentYear) {
+          const text = utils.getFromNowStr(dateTaken);
+          if (text !== currentText) {
             this.years.push({
               year,
+              text,
               url: "",
               preview: null,
               photos: [],
-            text: utils.getFromNowStr(dateTaken),
             });
+            currentText = text;
+          }
           currentYear = year;
         }