From 429ff26d2dd165f50f921846e01a620fdacb736c Mon Sep 17 00:00:00 2001
From: eberhardtj <30794167+eberhardtj@users.noreply.github.com>
Date: Wed, 23 May 2018 12:15:45 +0200
Subject: [PATCH] Fix #278: Receiving leader entity causes exception

(cherry picked from commit 264265326fbc5dd9b66fc30d21196d8af1c5e391)
---
 .../java/org/metafacture/biblio/marc21/Marc21Encoder.java     | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/metafacture-biblio/src/main/java/org/metafacture/biblio/marc21/Marc21Encoder.java b/metafacture-biblio/src/main/java/org/metafacture/biblio/marc21/Marc21Encoder.java
index 338795696..db0839de8 100644
--- a/metafacture-biblio/src/main/java/org/metafacture/biblio/marc21/Marc21Encoder.java
+++ b/metafacture-biblio/src/main/java/org/metafacture/biblio/marc21/Marc21Encoder.java
@@ -156,7 +156,9 @@ private void startField(final String name) {
 
     @Override
     public void endEntity() {
-        builder.endDataField();
+        if (state.equals(State.IN_FIELD_ENTITY)) {
+            builder.endDataField();
+        }
         state = State.IN_RECORD;
     }