algo: fix random nfa algo

alib2algo/src/automaton/generate/RandomAutomatonFactory.cpp

@@ -29,7 +29,7 @@ unsigned RandomAutomatonFactory::ithAccessibleState ( const ext::deque < bool >
 			i --;
 		if( i == 0 )
-			return i;
+			return j;
 	}
 	throw std::logic_error ( "Not enough states in deque of visited states" );
 }