phiGas is not updated in reactingOneDim pyrolysis model

In the reactingOneDim pyrolysis model the update of gas fluxes (via the updatePhiGas() member function) has been commented out, with the following description: "Commented out as the sensible gas energy is included in energy eq." I think the goal was to remove the update of phiHsGas and its use in the energy equation. However, this also removes the update to phiGas which is used for mapping to phi in a gaseous domain. The fireFoam oppositeBurningPanels tutorial, for example, thus does not work as intended (or as it used to) -- this can be observed by running the tutorial and then examining velocity on the coupled patches, which remains zero even when the surface is charring.