Please add the following to robots.txt for he wikis:
Disallow: /wiki/מיוחד: Disallow: /wiki/מיוחד%3A Disallow: /wiki/%D7%9E%D7%99%D7%95%D7%97%D7%93: Disallow: /wiki/%D7%9E%D7%99%D7%95%D7%97%D7%93%3A
I'm not sure the %3A is required, but all robots.txt entries have both variants.
The מיוחד namespace is the Hebrew translation of the Special namespace.