<blockquote>
<p>But in your additional example you have shown foo/dev_build as not being expanded the way foo/src is?</p>
</blockquote>
<p>foo/dev_build is one tree node because no file in foo itself is open. foo->src is two tree nodes because foo represents the project (therefore always gets its own top-level node) and src is a subdirectory (with an open file).</p>
<p>Might be easier if you just try the patch and see yourself, Github/mail kind of sucks for showing examples.</p>

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