reminder to describe subdomain keys with dots

diff --git a/SPEC.md b/SPEC.md
index a3254ee617a1bdd8a372ae9917ea2dc28780cebb..1c1292ce803bf65d6558f3bd641045cdbd72768c 100644 (file)
--- a/SPEC.md
+++ b/SPEC.md
@@ -307,6 +307,9 @@ the current domain object.
 
 #### map attribute
 
 
 #### map attribute
 

+FIXME - explain handling of the keys with dots.
+Also, add checks to the code to disallow empty elements.
+

 JSON Map object containing subdomain names as its keys and domain
 objects as values. Element of the map with empty key "" has special
 meaning: the value of this map element is merged into the current
 JSON Map object containing subdomain names as its keys and domain
 objects as values. Element of the map with empty key "" has special
 meaning: the value of this map element is merged into the current