[filesystem] V3 filesystem::path corrupted if constructed from a local buffer

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With V3 filesystem in 1.44.0, boost::filesystem::remove_all() crashes if invoked with a block-local (automatic storage duration) TCHAR [] buffer for the pathname.

Looks like a filesystem::path constructed this way is corrupted. The attached example creates 3 nested directories in %TEMP% and attempts to remove them. On Windows with Visual Studio 2008 this crashes with 'bad allocation'

If the path is constructed from a string/wstring, or if an actual pointer is used to invoke remove_all(), than all is fine and no crash occurs.

To run the sample code just create an empty VC++ project and add the .cpp to it.

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Sample source code

[Richard Hazlewood <boost@…>]

This looks like the issue described in #4640

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Indeed, it is the same bug.