Reuse an existing 040 if possible

The switcharound left us still appending the 040 to the new record,
which had no fields, rather than amending the existing 040 on the
incoming record.

Signed-off-by: Dan Scott <dscott@laurentian.ca>

diff --git a/tools/ebooks/prep_ebook_records.py b/tools/ebooks/prep_ebook_records.py
index d7ef422..993a4c5 100644 (file)
--- a/tools/ebooks/prep_ebook_records.py
+++ b/tools/ebooks/prep_ebook_records.py
@@ -290,7 +290,7 @@ def process_fields(record, options):
 
     new_record = pymarc.Record(to_unicode=True, force_utf8=True)
 
-    add_cat_source(new_record, options) # 040
+    add_cat_source(record, options) # 040
     add_restriction(record, options) # 506
 
     # 590