It appears that sometime during the past year, GA 141 was extended north along Bethelview Road from GA 9 to a new northern terminus at GA 20. In exchange, the entire route of GA 371 was decommissioned.
I was up there today and can confirm that all signage appears to have fully changed over. 141 is now signed along Bethelview Rd, with an END sign at 20, while all references to 371 have either been covered up or outright removed.