Index: branches/5.2.x/core/install/install_data.sql
===================================================================
diff -u -N -r14726 -r14728
--- branches/5.2.x/core/install/install_data.sql	(.../install_data.sql)	(revision 14726)
+++ branches/5.2.x/core/install/install_data.sql	(.../install_data.sql)	(revision 14728)
@@ -99,7 +99,7 @@
 # Section "in-portal:configure_users":
 INSERT INTO ConfigurationValues VALUES(DEFAULT, 'User_Allow_New', '3', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_users_allow_new', 'radio', '', '1=la_opt_UserInstantRegistration||2=la_opt_UserNotAllowedRegistration||3=la_opt_UserUponApprovalRegistration||4=la_opt_UserEmailActivation', 10.01, 0, 1, NULL);
 INSERT INTO ConfigurationValues VALUES(DEFAULT, 'AdvancedUserManagement', '0', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_prompt_AdvancedUserManagement', 'checkbox', NULL, NULL, 10.011, 0, 1, NULL);
-INSERT INTO ConfigurationValues VALUES(DEFAULT, 'Email_As_Login', '0', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_use_emails_as_login', 'checkbox', NULL, NULL, 10.02, 0, 0, NULL);
+INSERT INTO ConfigurationValues VALUES(DEFAULT, 'RegistrationUsernameRequired', '1', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_config_RegistrationUsernameRequired', 'checkbox', NULL, NULL, 10.02, 0, 0, NULL);
 INSERT INTO ConfigurationValues VALUES(DEFAULT, 'RegistrationCaptcha', '0', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_registration_captcha', 'checkbox', NULL, NULL, 10.025, 0, 0, NULL);
 INSERT INTO ConfigurationValues VALUES(DEFAULT, 'Min_UserName', '3', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_text_min_username', 'text', '', 'style="width: 50px;"', 10.03, 1, 0, NULL);
 INSERT INTO ConfigurationValues VALUES(DEFAULT, 'MaxUserName', '', 'In-Portal:Users', 'in-portal:configure_users', 'la_title_General', 'la_text_min_username', 'text', '', 'style="width: 50px;"', 10.03, 2, 0, NULL);