Checkout safe.

Author: Rob Rix

ObjectiveGit/GTRepository.m

@@ -236,7 +236,7 @@ + (id)cloneFromURL:(NSURL *)originURL toWorkingDirectory:(NSURL *)workdirURL opt
 
 	if (withCheckout) {
 		git_checkout_options checkoutOptions = GIT_CHECKOUT_OPTIONS_INIT;
-		checkoutOptions.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+		checkoutOptions.checkout_strategy = GIT_CHECKOUT_SAFE;
 		checkoutOptions.progress_cb = checkoutProgressCallback;
 		checkoutOptions.progress_payload = (__bridge void *)checkoutProgressBlock;
 		cloneOptions.checkout_opts = checkoutOptions;