echo boot | dd of=/dev/block/mmcblk0p3 bs=1 seek=0
To fix that. Now, since then, whenever I attempt to reboot into CWM from ROM Manager or from the power-down menu, it just does a straight reboot into CM.
I can manually go into recovery by powering off then powering on my tablet with Vol Down, so there is a workaround, but having the reboot into recovery means flashing new versions will allow the tablet to auto reboot when it's finished. Does anyone know how I can get back the reboot into recovery functionality? I suspect the command I used to fix the bootloop has done something inadvertent that may have caused this, but I have no idea what.