jom's /DUMPGRAPHDOT command line option not working

Using the /DUMPGRAPHDOT command line option causes the following command line parsing error:
Error: unknown command line option 'O' in arguments: '/L', '/R', '/DUMPGRAPHDOT', '-j1', '-f', 'makefile_xml'

In my opinion this is due to a bug in /src/jomlib/options.cpp, where the corresponding case is unreachable, as can be seen here:

} else if (upperArg.startsWith(QLatin1String("DUMPGRAPH")))

{ arg.remove(0, 9); dumpDependencyGraph = true; showLogo = false; }

else if (upperArg.startsWith(QLatin1String("DUMPGRAPHDOT")))

{ arg.remove(0, 12); dumpDependencyGraph = true; dumpDependencyGraphDot = true; showLogo = false; }