Change required for move operation

This change is required so that move
operation executed by transer-ownership
command.

Signed-off-by: Sujith H <sharidasan@owncloud.com>

lib/Crypto/Encryption.php

@@ -189,7 +189,23 @@ public function begin($path, $user, $mode, array $header, array $accessList) {
 		// always use the version from the original file, also part files
 		// need to have a correct version number if they get moved over to the
 		// final location
-		$this->version = (int)$this->keyManager->getVersion($this->stripPartFileExtension($path), new View());
+		if (\OC::$server->getSession()->exists('renameFile')) {
+			list($sourcePath,$targetPath) = \OC::$server->getSession()->get('renameFile');
+			/*
+			 * Rename triggered. So if the path and targetpath are same use
+			 * sourcepath's version number. Else use path's version, because that's
+			 * sourcepath.
+			 */
+			if ( $path === $targetPath) {
+				$this->version = $this->keyManager->getVersion($sourcePath, new View());
+			} else {
+				$this->version = (int)$this->keyManager->getVersion($this->stripPartFileExtension($path), new View());
+			}
+		} else {
+			//If not rename then use path's current version.
+			$this->version = (int)$this->keyManager->getVersion($this->stripPartFileExtension($path), new View());
+		}
+
 
 		if (
 			$mode === 'w'