EnumerateFiles to avoid caching

Question

I am using EnumerateFiles to get all *.md in the directory:

foreach (var mdName in Directory.EnumerateFiles(Path.Combine(BaseDirectory,
                            "assets/markdowns"), "*.md", SearchOption.AllDirectories)) 
{
    // async md parser call goes here
}

I have three test files a.md, b.md and c.md.

Now when I rename a.md to a1.md, EnumerateFiles returns both old and new filename.. The result from PowerShell says I have 3 files, while EnumerateFiles returns 4 files.

I read somewhere EnumerateFiles does some kind of caching, with lazy loading? But shouldn't it invalidate cache when the file is renamed?

GetFiles / EnumerateFiles Output:

[0]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\a.md"
[1]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\b.md"
[2]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\c.md"
[3]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\_a.md"
[4]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\_a1.md"
[5]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\_a2.md"
[6]: "C:\\Repos\\KiddiesBlog\\Tests\\bin\\Debug\\assets/less\\_a3.md"

Answer 1

Turned out to be my mistake. There is an MSBuild task responsible for creating shadow copy of the actual assets in Debug directory. It has all the previous files. VS isn't clearing the folder on Clean Solution. I guess I need to modify this task to observe the changes in source directory.