fix : deleted user when email share registers

Signed-off-by: Hamza Mahjoubi <hamzamahjoubi221@gmail.com>

lib/Service/ShareService.php

@@ -13,6 +13,7 @@
 use OCA\Polls\Db\Share;
 use OCA\Polls\Db\ShareMapper;
 use OCA\Polls\Db\UserMapper;
+use OCA\Polls\Db\VoteMapper;
 use OCA\Polls\Event\ShareChangedDisplayNameEvent;
 use OCA\Polls\Event\ShareChangedEmailEvent;
 use OCA\Polls\Event\ShareChangedLabelEvent;
@@ -57,6 +58,7 @@ public function __construct(
 		private NotificationService $notificationService,
 		private PollMapper $pollMapper,
 		private UserMapper $userMapper,
+		private VoteMapper $voteMapper,
 		private UserSession $userSession,
 	) {
 		$this->shares = [];
@@ -304,6 +306,10 @@ public function register(
 			$this->share->getType() === Share::TYPE_EMAIL
 			|| $this->share->getType() === Share::TYPE_CONTACT
 		) {
+			if($this->share->getType() === Share::TYPE_EMAIL) {
+				$this->voteMapper->renameUserId($this->share->getUserId(), $userId);
+			}
+
 			// Convert email and contact shares to external share, if user registers
 			$this->share->setType(Share::TYPE_EXTERNAL);
 			$this->share->setUserId($userId);