Add correct action flags to zero sized Vk indrect draw count

Fixes overlay Clear Before Draw/Pass, Overdraw (Pass) Triangle Size (Pass) not rendering on zero sized indirect draw count

renderdoc/driver/vulkan/wrappers/vk_draw_funcs.cpp

@@ -3001,7 +3001,8 @@ bool WrappedVulkan::Serialise_vkCmdDrawIndirectCount(SerialiserType &ser,
       AddAction(action);
 
       VulkanActionTreeNode &actionNode = GetActionStack().back()->children.back();
-      actionNode.action.flags = flags;
+      if(maxDrawCount > 0)
+        actionNode.action.flags = flags;
 
       actionNode.indirectPatch = indirectPatch;
 
@@ -3358,7 +3359,8 @@ bool WrappedVulkan::Serialise_vkCmdDrawIndexedIndirectCount(
       AddAction(action);
 
       VulkanActionTreeNode &actionNode = GetActionStack().back()->children.back();
-      actionNode.action.flags = flags;
+      if(maxDrawCount > 0)
+        actionNode.action.flags = flags;
 
       actionNode.indirectPatch = indirectPatch;
 

renderdoc/driver/vulkan/wrappers/vk_queue_funcs.cpp

@@ -751,7 +751,8 @@ void WrappedVulkan::InsertActionsAndRefreshIDs(BakedCmdBufferInfo &cmdBufInfo)
           // everything afterwards is adjusted. Now see if we need to remove the subdraw or clone it
           if(indirectCount == 0)
           {
-            // Copy the resource usage from the subdraw to the indirect action (push marker)
+            // Copy the flags and resource usage from the subdraw to the indirect action (push marker)
+            n.action.flags |= cmdBufNodes[i + 1].action.flags;
             n.resourceUsage.swap(cmdBufNodes[i + 1].resourceUsage);
             for(rdcpair<ResourceId, EventUsage> &use : n.resourceUsage)
               use.second.eventId += eidShift;