Former Dublin mayor Melissa Hernandez has officially advanced to face state Senator Aisha Wahab in a special election to fill the state congress seat vacated by former Congressman Eric Swalwell, who resigned in April following allegations of sexual assault. A final vote to decide the outcome is set for Aug. 18.The results went official on Thursday, reports KTVU, qualifying Hernandez to compete with fellow Democrat Aisha Wahab to finish Swalwell'…