diff --git a/app/models/communication/block/template/base/with_data.rb b/app/models/communication/block/template/base/with_data.rb
index 915626bdba8db90d6e6c2eaf08f5e875ffe738ab..05de95014dee2d702852d3066e64ea509c728465 100644
--- a/app/models/communication/block/template/base/with_data.rb
+++ b/app/models/communication/block/template/base/with_data.rb
@@ -8,15 +8,7 @@ module Communication::Block::Template::Base::WithData
       next unless json.has_key? component.property
       component.data = json[component.property]
     end
-    return unless has_element_class? # Template is not supposed to have elements at all
-    return unless json.has_key?('elements') # Template has no element yet
-    # Objects are initialized from the database,
-    # then data from the form replaces data from the db.
-    # We need to reset elements, otherwise it's never deleted.
-    @elements = []
-    json['elements'].each do |json|
-      @elements << default_element(json)
-    end
+    initialize_elements json
   end
 
   # Reads the data from the components
@@ -64,6 +56,18 @@ module Communication::Block::Template::Base::WithData
     !self.class.element_class.nil?
   end
 
+  def initialize_elements(json)
+    return unless has_element_class? # Template is not supposed to have elements at all
+    return unless json.has_key?('elements') # Template has no element yet
+    # Objects are initialized from the database,
+    # then data from the form replaces data from the db.
+    # We need to reset elements, otherwise it's never deleted.
+    @elements = []
+    json['elements'].each do |json|
+      @elements << default_element(json)
+    end
+  end
+
   def json_from(value)
     if value.is_a? String
       JSON.parse(value)