The bracha Shehechiyanu is supposed to be said only once during Chanukah, namely upon the first lighting (which is usually the 1st night unless someone was unable to light on the 1st night.)
The candles are lit in shul also, and a bracha is said in shul. However, a person does not fulfill his obligation via the lighting in shul, and he must relight when he arrives home.
Being that the person who lit in shul has already said Shehechiyanu in shul, does this not count at all, since the actual mitzvah is to light at home, does this mean that he can and should say Shehechiyanu when he arrives home - meaning he would say it twice in the same night?