Issue with quasiquotes will migrating from 2.12.3 to 2.12.4

Hello dear all! I’ve an issue with migration from scala 2.12.3 to 2.12.4 and quasiquote (unapply is never used warning). does someone already got this issue?

I create a example there https://gist.github.com/chpache/83ca53f28e9a8412fad40b7253c9ea9c

Many thanks and cheers,
Christophe