There is a new pull request by emacsomancer against master on the void-packages repository

https://github.com/emacsomancer/void-packages mu1-4-13
https://github.com/void-linux/void-packages/pull/24157

mu: update to 1.4.13


A patch file from https://github.com/void-linux/void-packages/pull/24157.patch is attached