us77ipis

Implement RandomX Veil mining

1

This implements RandomX mining for [VEIL](https://veil-project.com), which is `sha256d(randomx(header))`.

Deadlock with multiple relation references to polymorphic layers that have a common base layer

4

### What is the bug or the crash? QGIS hangs in the attributes dialog of a single feature. ### Steps to reproduce the issue 1. Create the following three layers:...