fix for entry updates

MeTavi · Nov 19, 2017 · d157776 · d157776
1 parent c5feb2c
commit d157776
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/betterbib/tools.py b/betterbib/tools.py
@@ -338,8 +338,13 @@ def update(entry1, entry2):
     '''
     out = entry1
     if entry2 is not None:
-        out.type = entry2.type
-        out.persons = entry2.persons
+        if entry2.type:
+            out.type = entry2.type
+
+        if entry2.persons:
+            out.persons = entry2.persons
+
         for key, value in entry2.fields.items():
-            out.fields[key] = value
+            if value:
+                out.fields[key] = value
     return out