Mac OS Mojave SDL_Texture issues. SDL 2.0.8-2.0.9 pre-release

SDL Development
1

I just upgraded to Mac OS Mojave and one of my SDL projects does not work anymore despite no changes to its code. While trying to isolate the problem I ran into what seems like a bug with SDL_Texture:

int main() {
  SDL_version compiled;
  SDL_version linked;

  SDL_VERSION(&compiled);
  SDL_GetVersion(&linked);
  printf("We compiled against SDL version %d.%d.%d ...\n",
         compiled.major, compiled.minor, compiled.patch);
  printf("But we are linking against SDL version %d.%d.%d.\n",
         linked.major, linked.minor, linked.patch);

  SDL_Window* win = SDL_CreateWindow("test", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 800, 600, 0);
  SDL_Renderer* ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_TARGETTEXTURE);
  SDL_Texture* tex = SDL_CreateTexture(ren, SDL_PIXELFORMAT_RGBA8888, 400, 300, SDL_TEXTUREACCESS_TARGET);

  SDL_RenderClear(ren);
  SDL_RenderPresent(ren);

  SDL_SetRenderTarget(ren, tex);
  SDL_SetRenderDrawColor(ren, 255, 255, 255, 255);
  SDL_RenderClear(ren);
  SDL_SetRenderTarget(ren, nullptr);

  bool running = true;
  SDL_Event e{};
  while (running) {
    while (SDL_PollEvent(&e) != 0) {
      if (e.type == SDL_QUIT)
        running = false;
    }

    SDL_SetRenderTarget(ren, nullptr);
    SDL_SetRenderDrawColor(ren, 0, 0, 100, 255);
    SDL_RenderClear(ren);

    SDL_Rect dist{0, 0, 400, 300};
    SDL_RenderCopy(ren, tex, nullptr, &dist);

    SDL_RenderPresent(ren);
  }

  SDL_DestroyTexture(tex);
  SDL_DestroyRenderer(ren);
  SDL_DestroyWindow(win);

  return 0;
}

Displays:

Screenshot
Screen Shot 2018-10-02 at 1.27.45 PM.jpg1824×1468 127 KB

While I obviously expect the texture to have been cleared white.

I had tested both on SDL 2.0.8 and SDL 2.0.9 pre-release.