From e22d06376f64a86d3022aa7dcaa55520aebf5cdf Mon Sep 17 00:00:00 2001
From: Davide Negretti <davide.negretti@4science.it>
Date: Mon, 14 Feb 2022 19:49:23 +0100
Subject: [PATCH] [CST-5316] Wrong 'dc.date.issue' format causes loader to be
 shown indefinitely in "Browsing by issue date" page

---
 .../browse-by-date-page/browse-by-date-page.component.ts        | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/app/browse-by/browse-by-date-page/browse-by-date-page.component.ts b/src/app/browse-by/browse-by-date-page/browse-by-date-page.component.ts
index 1bdbb91a8b..4b445dedb7 100644
--- a/src/app/browse-by/browse-by-date-page/browse-by-date-page.component.ts
+++ b/src/app/browse-by/browse-by-date-page/browse-by-date-page.component.ts
@@ -88,7 +88,7 @@ export class BrowseByDatePageComponent extends BrowseByMetadataPageComponent {
           if (hasValue(date)) {
             const dateObj = new Date(date);
             // TODO: it appears that getFullYear (based on local time) is sometimes unreliable. Switching to UTC.
-            lowerLimit = dateObj.getUTCFullYear();
+            lowerLimit = isNaN(dateObj.getUTCFullYear()) ? lowerLimit : dateObj.getUTCFullYear();
           }
         }
         const options = [];