The Dawn Jogger was on the home stretch this morning, just needing to cross the San Francisquito Bike Bridge and jog up Bay Laurel to home, when a mom and son passed her by. On the back of the tandem bike, old glory was waving in the breeze. Was it always there or had it been added in advance of this weekend’s 4th of July holiday? She’ll never know. But she did get a friendly wave from the mom…