Re: [PATCH] git.c: fix help.autocorrect after 57ea712 breaks it

diff --git a/git.c b/git.c
index da278c3..cd733f7 100644
--- a/git.c
+++ b/git.c

@@ -25,14 +25,15 @@ static const char *env_names[] = {
 	GIT_PREFIX_ENVIRONMENT
 };
 static char *orig_env[4];
-static int saved_env_before_alias;
+static int saved_env_before_alias, saved;

 static void save_env_before_alias(void)
 {
 	int i;
-	if (saved_env_before_alias)
-		return;
+	if (saved)
+		die("BUG: uneven pair of save_env/restore_env calls");
 	saved_env_before_alias = 1;
+	saved = 1;
 	orig_cwd = xgetcwd();
 	for (i = 0; i < ARRAY_SIZE(env_names); i++) {
 		orig_env[i] = getenv(env_names[i]);

@@ -44,9 +45,13 @@ static void save_env_before_alias(void)
 static void restore_env(int external_alias)
 {
 	int i;
+	if (saved != 1)
+		die("BUG: uneven pair of save_env/restore_env calls");
 	if (!external_alias && orig_cwd && chdir(orig_cwd))
 		die_errno("could not move to %s", orig_cwd);
 	free(orig_cwd);
+	orig_cwd = NULL;
+	saved = 0;
 	for (i = 0; i < ARRAY_SIZE(env_names); i++) {
 		if (external_alias &&
 		    !strcmp(env_names[i], GIT_PREFIX_ENVIRONMENT))

diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh
index 52678e7..3f95285 100755
--- a/t/t1300-repo-config.sh
+++ b/t/t1300-repo-config.sh

@@ -1201,4 +1201,12 @@ test_expect_success POSIXPERM,PERL 'preserves existing permissions' '
 	  "die q(badrename) if ((stat(q(.git/config)))[2] & 07777) != 0600"
 '
 
+test_expect_success 'autocorrect and save_env/restore_env' '
+	git config alias.ss status &&
+	git config help.autocorrect 1 &&
+	git sss --porcelain | grep actual >actual &&
+	echo "?? actual" >expected &&
+	test_cmp expected actual
+'
+
 test_done