[vk] Fix vertex attribute dirty range off by 1?

src/video_core/renderer_vulkan/vk_rasterizer.cpp

@@ -1583,13 +1583,16 @@ void RasterizerVulkan::UpdateVertexInput(Tegra::Engines::Maxwell3D::Regs& regs)
     // There seems to be a bug on Nvidia's driver where updating only higher attributes ends up
     // generating dirty state. Track the highest dirty attribute and update all attributes until
     // that one.
-    size_t highest_dirty_attr{};
+    size_t highest_dirty_attr = 0;
+    bool has_dirty_attr = false;
     for (size_t index = 0; index < Maxwell::NumVertexAttributes; ++index) {
         if (dirty[Dirty::VertexAttribute0 + index]) {
             highest_dirty_attr = index;
+            has_dirty_attr = true;
         }
     }
-    for (size_t index = 0; index < highest_dirty_attr; ++index) {
+    if (has_dirty_attr) {
+        for (size_t index = 0; index <= highest_dirty_attr; ++index) {
             const Maxwell::VertexAttribute attribute{regs.vertex_attrib_format[index]};
             const u32 binding{attribute.buffer};
             dirty[Dirty::VertexAttribute0 + index] = false;
@@ -1605,6 +1608,7 @@ void RasterizerVulkan::UpdateVertexInput(Tegra::Engines::Maxwell3D::Regs& regs)
                 });
             }
         }
+    }
     for (size_t index = 0; index < Maxwell::NumVertexAttributes; ++index) {
         if (!dirty[Dirty::VertexBinding0 + index]) {
             continue;