message: Don't start overlay marker before commandbuffer has begun
diff: @@ -413,14 +413,14 @@ ResourceId VulkanReplay::RenderOverlay(ResourceId texid, CompType typeHint, Debu
  VkCommandBuffer cmd = m_pDriver->GetNextCmd();
  - VkMarkerRegion::Begin(StringFormat::Fmt("RenderOverlay %d", overlay), cmd);
  -
  VkCommandBufferBeginInfo beginInfo = {VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO, NULL,
  VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT};
  VkResult vkr = vt->BeginCommandBuffer(Unwrap(cmd), &beginInfo);
  RDCASSERTEQUAL(vkr, VK_SUCCESS);
  + VkMarkerRegion::Begin(StringFormat::Fmt("RenderOverlay %d", overlay), cmd);
  +
  // if the overlay image is the wrong size, free it
  if(m_Overlay.Image != VK_NULL_HANDLE && (iminfo.extent.width != m_Overlay.ImageDim.width ||
  iminfo.extent.height != m_Overlay.ImageDim.height))
  