[Bug] Autocomplete bug when directory contains parentheses

[Benedikt Westreicher <benedikt.westreicher@xxxxxxxxxxx>]

Hi,

I can across a problem when trying to autcomplete a path that contained a directory with parentheses.

It can be reproduced with:

```
% PS1='%# ' zsh -f
% autoload compinit
% compinit
% cd $(mktemp -d)
% mkdir 'a(b)'
% touch 'a(b)'/x
% mv 'a(b)/<TAB>
% mv 'a(b)/x'<^C>
% zstyle ':completion:*:paths' path-completion no
% mv 'a(b)/<TAB>
<BEEP>
```

Thanks to marlonrichert on Github for the test case