Unable to restore ImpingingJet from HDF5

[speth]

Problem description

The Sim1D.restore method fails for flames that use the ImpingingJet class.

Steps to reproduce

1. Run samples/python/onedim/stagnation_flame.py
2. Run the following commands:

import cantera as ct
gas = ct.Solution('h2o2.yaml')
flame = ct.ImpingingJet(gas)
flame.restore('stagnation_flame_data/stagnation_flame.h5', 'mdot-0')

Behavior

File build/python/cantera/_onedim.pyx:1665, in cantera._onedim.Sim1D.restore()

CanteraError: 
*******************************************************************************
CanteraError thrown by SolutionArray::setLoc:
Unable to set location in empty SolutionArray.
*******************************************************************************

System information

• Cantera version: main branch at 4b30fa7
• OS: macOS 13.3
• Python 3.11, HDF5 1.14.1, HighFive 2.7.1