"-exec-arguments" ignores "--all" (win32 , 7.5, 7.4)

[Martin]

I found that gdb (tested 7.5 and 7.4) on win 32 (tested on vista) does 
ignore --all as argument for the debuggee.
   -exec-arguments --all

start gdb with
gdb -i mi yourexe.exe

and enter
-exec-arguments --all
-exec-run

the exe will not see the argument. It works with any other argument, 
that I tested.

Does any one know why? Or how to solve?