fix: explicitly ignore nested mounts when transfering ownership

Signed-off-by: Robin Appelman <robin@icewind.nl>

[skip ci]

Author: icewind1991

apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php

@@ -62,7 +62,7 @@ public function isDeletable($path) {
 		return $this->deletables[$path];
 	}
 
-	public function rename($path1, $path2) {
+	public function rename($path1, $path2, array $options = []) {
 		return $this->canRename;
 	}
 

build/integration/features/transfer-ownership.feature

@@ -511,7 +511,7 @@ Feature: transfer-ownership
 		And user "user2" accepts last share
 		When transferring ownership of path "test" from "user0" to "user1"
 		Then the command failed with exit code 1
-		And the command output contains the text "Could not transfer files."
+		And the command error output contains the text "Moving a storage (user0/files/test) into another storage (user1) is not allowed"
 
 	Scenario: transferring ownership does not transfer received shares
 		Given user "user0" exists

lib/private/Files/View.php

@@ -728,11 +728,14 @@ public function deleteAll($directory) {
 	 *
 	 * @param string $source source path
 	 * @param string $target target path
+	 * @param array $options
 	 *
 	 * @return bool|mixed
 	 * @throws LockedException
 	 */
-	public function rename($source, $target) {
+	public function rename($source, $target, array $options = []) {
+		$checkSubMounts = $options['checkSubMounts'] ?? true;
+
 		$absolutePath1 = Filesystem::normalizePath($this->getAbsolutePath($source));
 		$absolutePath2 = Filesystem::normalizePath($this->getAbsolutePath($target));
 
@@ -791,7 +794,11 @@ public function rename($source, $target) {
 					try {
 						$this->changeLock($target, ILockingProvider::LOCK_EXCLUSIVE, true);
 
-						$movedMounts = $mountManager->findIn($this->getAbsolutePath($source));
+						if ($checkSubMounts) {
+							$movedMounts = $mountManager->findIn($this->getAbsolutePath($source));
+						} else {
+							$movedMounts = [];
+						}
 
 						if ($internalPath1 === '') {
 							if ($mount1 instanceof MoveableMount) {