[STUMP] Command completion and invalid character error

[David Unric]

Hello,

I'd like to ask you if it is Stumpwm's bug or a feature. Issue and steps how to reproduce described bellow:

1. Invoke prompt for a shell command ("C-t !" by default)
2. Start to type name of an application you would like to launch ("firef" - trying to run firefox)
3. Press TAB to try to complete the command name (like complete "firef" -> "firefox")
4. Stumpwm instead throws out the error message "Error In Command 'exec': The value #\:ATIN_SMALL_LETTER_A_WITH_ACUTE is not of type BASE-CHAR."

Stumpwm latest Git version
SBCL 1.0.38
CLX 0.7.4
CL-PPCRE 2.0.3

Even tried without ~/.stumpwmrc but the problem persists.

Is there some trick like rebuild SBCL with command completion ?
Can anybody else confirm described behaviour ?

Regards.

David