Merge pull request #33489 from nextcloud/backport/33485/stable23

Author: skjnldsv

lib/private/Authentication/Token/PublicKeyTokenProvider.php

@@ -433,9 +433,12 @@ public function updatePasswords(string $uid, string $password) {
 		$tokens = $this->mapper->getTokenByUser($uid);
 		foreach ($tokens as $t) {
 			$publicKey = $t->getPublicKey();
-			$t->setPassword($this->encryptPassword($password, $publicKey));
-			$t->setPasswordInvalid(false);
-			$this->updateToken($t);
+			$encryptedPassword = $this->encryptPassword($password, $publicKey);
+			if ($t->getPassword() !== $encryptedPassword) {
+				$t->setPassword($encryptedPassword);
+				$t->setPasswordInvalid(false);
+				$this->updateToken($t);
+			}
 		}
 	}