Devotion of gay lovers move a god to save a community during a pestilence

Is this gay-affirming tale of Moon Hare/Jade Rabbit a 19th century folktale or a modern creation?

The following tale was attributed to Volume 29 of Canghai Shiyi[i] (“Picking up things left in the blue sea”) a collection of stories and poems edited by Lin Weicheng, a 19th century scholar born in Fujian.