MC 4.8.13 uses Ctrl-Backspace for directory hotlist

I just built GNU Midnight Commander 4.8.13 from source and the directory hotlist is now invoked with CtrlBackspace instead of Ctrl\.

This is a PITA since it seems to not be passed through via ssh -- or else it plain does not work, this is a remote system so that's the only access I have.

Rather than sorting that out, I'd prefer to have the old Ctrl-\ back, but I could not find anything relevant in the .configure options and it seems to be hard-coded in. Is there anything I can do?