fix: Do not show password dialog when user can not validate password

The password confirmation dialog is always shown unless the user backend
does not allow password confirmation. A user backend may explicitly
provide that information, but even if it does not that could have been
defined in the authentication token with
"IToken::SCOPE_SKIP_PASSWORD_VALIDATION" (for example, when "user_oidc"
is only used for authentication and user provision is done by another
user backend).

Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>

lib/private/Template/JSConfigHelper.php

@@ -67,6 +67,8 @@ class JSConfigHelper {
 				$userBackendAllowsPasswordConfirmation = $backend->canConfirmPassword($uid) && $this->canUserValidatePassword();
 			} elseif (isset($this->excludedUserBackEnds[$this->currentUser->getBackendClassName()])) {
 				$userBackendAllowsPasswordConfirmation = false;
+			} else {
+				$userBackendAllowsPasswordConfirmation = $this->canUserValidatePassword();
 			}
 		} else {
 			$uid = null;