There's a merged pull request on the void-packages repository

xbps-src: (zap) correctly empty the masterdir
https://github.com/void-linux/void-packages/pull/15437

Description:
Instead of relying on a potentially outdated list of files and dirs to
remove, just remove+recreate the whole masterdir.

This previously led to leftover .xbps* files, which broke subsequent
operations.

See: #14476