From d5a6f9b9d500f17765f8d5c339787a63a004d66f Mon Sep 17 00:00:00 2001
From: Ludovic Marcotte <lmarcotte@inverse.ca>
Date: Thu, 19 Dec 2019 09:03:17 -0500
Subject: [PATCH] fix(eas): make sure there is always an attendee name (fixes
 #4910)

---
 ActiveSync/iCalEvent+ActiveSync.m | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ActiveSync/iCalEvent+ActiveSync.m b/ActiveSync/iCalEvent+ActiveSync.m
index 81f087e97..3db985cba 100644
--- a/ActiveSync/iCalEvent+ActiveSync.m
+++ b/ActiveSync/iCalEvent+ActiveSync.m
@@ -194,7 +194,10 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
           attendee = [attendees objectAtIndex: i];
           [s appendFormat: @"<Attendee_Email xmlns=\"Calendar:\">%@</Attendee_Email>", [[attendee rfc822Email] activeSyncRepresentationInContext: context]];
-          [s appendFormat: @"<Attendee_Name xmlns=\"Calendar:\">%@</Attendee_Name>", [[attendee cn] activeSyncRepresentationInContext: context]];
+          if ([[attendee cn] length])
+            [s appendFormat: @"<Attendee_Name xmlns=\"Calendar:\">%@</Attendee_Name>", [[attendee cn] activeSyncRepresentationInContext: context]];
+          else
+            [s appendFormat: @"<Attendee_Name xmlns=\"Calendar:\">%@</Attendee_Name>", [[attendee rfc822Email] activeSyncRepresentationInContext: context]];
           
           attendee_status = [self _attendeeStatus: attendee];