list /c fails for attached TCC on TCMD 11 x64

[Juanma Barranquero]

Same config as previous bug:

TCC 11,00,32 x64 Windows 7 [Version 6,1,7600]
TCC Build 32 Windows 7 Build 7600

On a detached TCC, "list /c somefile" works. However, if the TCC session is attached to TCMD, it hangs or, if Ctrl-C, crashes (TCMD survives, though).