Fix errors on serializaiton of an image created by AOSP contacts

test_files/photo-test.vcf

@@ -0,0 +1,88 @@
+BEGIN:VCARD
+VERSION:2.1
+N:;my former school;;;
+FN:should be ok to share
+TEL;HOME:+49123456789
+PHOTO;ENCODING=BASE64;JPEG:/9j/4AAQSkZJRgABAQAAAQABAAD/4gIoSUNDX1BST0ZJTEU
+ AAQEAAAIYAAAAAAIQAABtbnRyUkdCIFhZWiAAAAAAAAAAAAAAAABhY3NwAAAAAAAAAAAAAAAA
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+ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAlkZXNjAAAA8AAAAHRyWFlaAAABZAAAABRnWFlaAA
+ ABeAAAABRiWFlaAAABjAAAABRyVFJDAAABoAAAAChnVFJDAAABoAAAAChiVFJDAAABoAAAACh
+ 3dHB0AAAByAAAABRjcHJ0AAAB3AAAADxtbHVjAAAAAAAAAAEAAAAMZW5VUwAAAFgAAAAcAHMA
+ UgBHAEIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
+ AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFhZWiAAAAAAAABvogAAOPUAAAOQWFlaIA
+ AAAAAAAGKZAAC3hQAAGNpYWVogAAAAAAAAJKAAAA+EAAC2z3BhcmEAAAAAAAQAAAACZmYAAPK
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+
+END:VCARD

tests.py

@@ -528,6 +528,14 @@ def test_vcard_3_parsing(self):
             self.assertEqual(new_card.org.value, card.org.value)
             card = new_card
 
+    def test_photo_serialization(self):
+        """
+        Test for AOSP (Android) exported with attached photos
+        """
+        test_file = get_test_file("photo-test.vcf")
+        card = base.readOne(test_file)
+        serialized = card.serialize()
+
 
 class TestIcalendar(unittest.TestCase):
     """

vobject/vcard.py

@@ -130,6 +130,8 @@ def decode(cls, line):
                 line.singletonparams.remove('BASE64')
                 line.encoding_param = cls.base64string
             encoding = getattr(line, 'encoding_param', None)
+            if encoding == 'BASE64':
+                line.encoding_param = cls.base64string
             if encoding:
                 if isinstance(line.value, bytes):
                     line.value = codecs.decode(line.value, "base64")