fix(files_sharing): Filter own shares that are reshares

Signed-off-by: provokateurin <kate@provokateurin.de>

Author: provokateurin

apps/files_sharing/lib/MountProvider.php

@@ -55,7 +55,7 @@ public function getMountsForUser(IUser $user, IStorageFactory $loader) {
 
 		// filter out excluded shares and group shares that includes self
 		$shares = array_filter($shares, function (IShare $share) use ($user) {
-			return $share->getPermissions() > 0 && $share->getShareOwner() !== $user->getUID();
+			return $share->getPermissions() > 0 && $share->getSharedBy() !== $user->getUID();
 		});
 
 		$superShares = $this->buildSuperShares($shares, $user);