ignore: clear the error when matching a pattern negationcmn/ignored-ignore

When we discover that we want to keep a negative rule, make sure to
clear the error variable, as it we otherwise return whatever was left by
the previous loop iteration.

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/status/ignore.c b/tests/status/ignore.c
index 3193d318e..ba1d69a99 100644
--- a/tests/status/ignore.c
+++ b/tests/status/ignore.c
@@ -1010,3 +1010,15 @@ void test_status_ignore__subdir_doesnt_match_above(void)
 	cl_git_pass(git_ignore_path_is_ignored(&ignored, g_repo, "src/SRC/test.txt"));
 	cl_assert_equal_i(icase, ignored);
 }
+
+void test_status_ignore__negate_exact_previous(void)
+{
+	int ignored;
+
+	g_repo = cl_git_sandbox_init("empty_standard_repo");
+
+	cl_git_mkfile("empty_standard_repo/.gitignore", "*.com\ntags\n!tags/\n.buildpath");
+	cl_git_mkfile("empty_standard_repo/.buildpath", "");
+	cl_git_pass(git_ignore_path_is_ignored(&ignored, g_repo, ".buildpath"));
+	cl_assert_equal_i(1, ignored);
+}