FUSE: fix directory listing bugs
- Fix #2851 (closed): fs: directory: ignore missing artifact for submodules
- Fix #2842 (closed): fs: directory: check first for symlink before content/directory
Migrated from D4682 (view on Phabricator)
Staging instance, all changes can be removed at any time
Migrated from D4682 (view on Phabricator)