FIX: Importer not handling usernames correctly

script/import_scripts/base.rb

@@ -258,9 +258,8 @@ class ImportScripts::Base
     if opts[:username].blank? ||
       opts[:username].length < User.username_length.begin ||
       opts[:username].length > User.username_length.end ||
-      opts[:username] =~ /[^A-Za-z0-9_]/ ||
-      opts[:username][0] =~ /[^A-Za-z0-9]/ ||
-      !User.username_available?(opts[:username])
+      !User.username_available?(opts[:username]) ||
+      !UsernameValidator.new(opts[:username]).valid_format?
       opts[:username] = UserNameSuggester.suggest(opts[:username] || opts[:name] || opts[:email])
     end
     opts[:email] = opts[:email].downcase
@@ -289,14 +288,19 @@ class ImportScripts::Base
       if opts[:active] && opts[:password].present?
         u.activate
       end
-    rescue
+    rescue => e
       # try based on email
+      if e.record.errors.messages[:email].present?
         existing = User.find_by(email: opts[:email].downcase)
         if existing
           existing.custom_fields["import_id"] = import_id
           existing.save!
           u = existing
         end
+      else
+        puts "Error on record: #{opts}"
+        raise e
+      end
     end
     post_create_action.try(:call, u) if u.persisted?