[RP] two escape keys?

[Joe Corneli]

I have bound two different keys to the same keysym:

keycode  66 = F15
keycode  71 = F15

Here's what I see when I press the keys, under xev:

KeyRelease event, serial 33, synthetic NO, window 0x1e00001,
    root 0x171, subw 0x0, time 3576575312, (135,875), root:(136,876),
    state 0x0, keycode 66 (keysym 0xffcc, F15), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 33, synthetic NO, window 0x1e00001,
    root 0x171, subw 0x0, time 3576571775, (135,875), root:(136,876),
    state 0x0, keycode 71 (keysym 0xffcc, F15), same_screen YES,
    XKeysymToKeycode returns keycode: 66
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

I'd like to use them both as "escape" in Ratpoison (escape F15).  Is
this possible?  At the moment, under RP 1.4.5, one of the keys acts as
escape, and the other is passed through to the managed window.
Further, it seems that Ratpoison only allows one "escape" key at a
time, unless there's a trick with keymaps?