From 830282a0614661505c73aec20662143abbea161c Mon Sep 17 00:00:00 2001
From: tomlin <tomlin@dhcp-v013-213.mobile.uci.edu>
Date: Tue, 10 May 2022 16:03:23 -0700
Subject: [PATCH] fixes #8396

---
 .../jabref/gui/entryeditor/DeprecatedFieldsTab.java    | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java b/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java
index d7bf6afab51..2beabdf1699 100644
--- a/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java
+++ b/src/main/java/org/jabref/gui/entryeditor/DeprecatedFieldsTab.java
@@ -1,6 +1,7 @@
 package org.jabref.gui.entryeditor;
 
 import java.util.Collections;
+import java.util.HashSet;
 import java.util.Optional;
 import java.util.Set;
 
@@ -53,7 +54,14 @@ public DeprecatedFieldsTab(BibDatabaseContext databaseContext,
     protected Set<Field> determineFieldsToShow(BibEntry entry) {
         Optional<BibEntryType> entryType = entryTypesManager.enrich(entry.getType(), databaseContext.getMode());
         if (entryType.isPresent()) {
-            return entryType.get().getDeprecatedFields();
+            Set<Field> validDeprecatedFields = new HashSet<>();
+            for (Field field : entryType.get().getDeprecatedFields()) {
+                Optional<String> fieldValue = entry.getField(field);
+                if (fieldValue.isPresent()) {
+                    validDeprecatedFields.add(field);
+                }
+            }
+            return validDeprecatedFields;
         } else {
             // Entry type unknown -> treat all fields as required
             return Collections.emptySet();