Max Wipfli c1de46aaaf Kernel: Don't assume there are no nodes if m_unveiled_paths.is_empty() ...

If m_unveiled_paths.is_empty(), the root node (which is m_unveiled_paths
itself) is the matching veil. This means we should not return nullptr in
this case, but just use the code path for the general case.

This fixes a bug where calling e.g. unveil("/", "r") would refuse you
access to anything, because find_matching_unveiled_path would wrongly
return nullptr.

Since find_matching_unveiled_path can no longer return nullptr, we can
now just return a reference instead.

2021-06-08 12:15:04 +02:00

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