fixes #1653

app/models/artist.rb

@@ -78,6 +78,18 @@ class Artist < ActiveRecord::Base
     def other_names_comma=(string)
       self.other_names = string.split(/,/).map {|x| Artist.normalize_name(x)}.join(" ")
     end
+
+    def rename!(new_name)
+      new_wiki_page = WikiPage.titled(new_name).first
+      if new_wiki_page
+        # Merge the old wiki page into the new one
+        new_wiki_page.update_attributes(:body => new_wiki_page.body + "\n\n" + notes)
+      else
+        wiki_page.update_attribute(:title, new_name)
+      end
+      reload
+      update_attribute(:name, new_name)
+    end
   end
 
   module GroupMethods