Early Query: availableChunks & HDF5

[ax3l]

Describe the bug
It seems that querying availableChunks early in a HDF5 file during read causes an issue with opening logic.

To Reproduce

#include <openPMD/openPMD.hpp>

#include <iostream>


using std::cout;
using namespace openPMD;

int main()
{
    Series s = Series(
        "../samples/git-sample/data%T.h5",
        Access::READ_ONLY
    );

    auto electrons = s.iterations[400].particles["electrons"];

    for( auto & r : electrons )
    {
        cout << r.first << ": ";
        for( auto & r_c : r.second )
        {
            cout << r_c.first << "\n";
            if( !r_c.second.constant() )
                auto chunks = r_c.second.availableChunks();
        }
    }

    return 0;
}

charge: 
        Scalar
mass: 
      Scalar
momentum: x
terminate called after throwing an instance of 'std::runtime_error'
  what():  [HDF5] File ID not found with file name
Aborted (core dumped)

openPMD-api/src/IO/HDF5/HDF5IOHandler.cpp

Lines 399 to 401 in 6fd3936

	auto fid = m_fileNamesWithID.find( fname->second );
	VERIFY( fid != m_fileNamesWithID.end(),
	"[HDF5] File ID not found with file name" );

The value of fname->second is ../samples/git-sample/data00000400.h5.
The elements in m_fileNamesWithID.size() are 0.

Expected behavior
This works with ADIOS2, so I think it's a backend bug for HDF5.

Software Environment

• version of openPMD-api: latest dev
• installed openPMD-api via: source
• operating system: Ubuntu 20.04
• machine: local
• name and version of Python implementation: N/A
• version of HDF5: 1.10.7
• version of ADIOS1: 1.13.1
• version of ADIOS2: 2.7.1
• name and version of MPI: serial run, but build with OpenMPI

Additional context
Add any other context about the problem here.

[ax3l]

Proposed fix in #1035