CVS griph: * don't invalidate modules during I/O (fixes segfault)

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     griph   07/07/22 08:09:53

Modified files:
        .              : ChangeLog 
        fvwm           : events.c module_list.c module_list.h 

Log message:
* don't invalidate modules during I/O (fixes segfault)