Patch that fixes multiple mail atributes returned by shib

flowspec/views.py

@@ -471,6 +471,6 @@ def send_new_mail(subject, message, from_email, recipient_list, bcc_list):
 
 def lookupShibAttr(attrmap, requestMeta):
     for attr in attrmap:
-        if attr in requestMeta:
+        if (attr in requestMeta) & (len(requestMeta[attr]) > 0):
             return requestMeta[attr]
     return ''
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