Mac OS: black screen after moving

[samueleguino97]

Describe the bug
The window opens just fine but then after dragging the window a bit or resizing the window goes black and it stays black even after I let go.
its not an issue with the frambuffer glfw callback since I added that and nothing changes
this happens only on Mac OS as I tried on windows and works fine
its happening with every backend

I have a reproduceable repo
https://github.com/samueleguino97/zig-glfw-bgfx

To Reproduce
Steps to reproduce the behavior:

1. Clone the repo
2. Use Zig 0.14
3. Build with zig build run
4. Move the window and see it turn black

Expected behavior
I expected to actually see output when I stop dragging

[mcourteaux]

FYI: Your repository misses the .gitmodules information somehow. Cloning recursively doesn't work for me.
Can confirm this issue on my computer.
However, I have never tried to render nothing, except clearing the screen. Is this a bug involving the bgfx::touch() mechanism? I can confirm that the bug indeed triggers once you move the window, and vsync is lost for the main loop: that loop in main.zig starts going super fast. In my software, with latest version of BGFX, I don't get this issue.