@schickb
yes, my patch is applied to the C::B-version in my repo.
@DrewBoo
you are right, your patch works without problems.
I haven't tested copying the file with wxWidgets, because copying it on commandline with "cp" does not copy the file-permissions, and I believed that wxWidgets uses the same mechanism the OS uses.
That's not the case , but I'm not sure if we can rely on the fact that it works with future releases of wxWidgets or (for example) on Mac.
I cannot test it on other OS's expect on windows. Nevertheless it's the dev's decision if they want to fix this bug and how they do it.
The problem that renaming works, but copying not , is not a real problem I think, because the renamed file should still be there. If not something really went wrong.