17th November 2016
The 18-year-old will now remain at the Avenue until the 17th December, having made six appearances for the Magpies since joining on loan midway through October. 
Lea, who graduated through Southampton’s academy system before arriving at Huish Park in the summer, will remain part of Mark Jermyn’s squad alongside fellow Town loanee Ollie Bassett. 
Both Lea and Bassett will be available for selection for Dorchester’s league clash with Chesham United at the avenue this weekend.