Cloud post-processing data not written when steady case converges using residualControl

Summary

When using clouds in steady solvers combined with case termination controls set using residualControl in the fvSolution file, cloud post-processing data are not written on the last iteration.

Steps to reproduce

Add residualControl settings to a steady flow solver with cloud functionality and cloud a post-processing object, e.g. particleTracks

    particleTracks
    {
        type            particleTracks;
        trackInterval   5;
        maxSamples      1000000;
        resetOnWrite    yes;
    }

and notice that the cloud post-processing data are not written

Example case

What is the current bug behaviour?

When the criteria specified in the residualControls dictionary are achieved the solver loop calls time.writeAndEnd() to write any objects registered with AUTO_WRITE and exits. Operations such as cloud post-processing are currently only triggered when evolving the cloud and intercept the writeTime() flag and are therefore missed.

What is the expected correct behavior?

Relevant logs and/or images

Environment information

• OpenFOAM version :
• Operating system :
• Hardware info :
• Compiler :

Possible fixes

Couple of options

• instead of exiting straight away, run for 1 more iteration with the writeTime_ flag set (e.g. using time.writeOnce() and exit
• intercept the write() call to trigger other post-processing actions