Dear ImGui 1.86 WIP (18518)
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sizeof(size_t): 4, sizeof(ImDrawIdx): 2, sizeof(ImDrawVert): 20
define: __cplusplus=201103
define: IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS
define: _WIN32
define: __MINGW32__
define: __GNUC__=8
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io.BackendPlatformName: imgui_impl_win32
io.BackendRendererName: imgui_impl_dx11
io.ConfigFlags: 0x00000000
io.ConfigInputTextCursorBlink
io.ConfigWindowsResizeFromEdges
io.ConfigWindowsMoveFromTitleBarOnly
io.ConfigMemoryCompactTimer = 60.0
io.BackendFlags: 0x0000000E
 HasMouseCursors
 HasSetMousePos
 RendererHasVtxOffset
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io.Fonts: 1 fonts, Flags: 0x00000000, TexSize: 512,256
io.DisplaySize: 1920.00,1009.00
io.DisplayFramebufferScale: 1.00,1.00
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style.WindowPadding: 8.00,8.00
style.WindowBorderSize: 1.00
style.FramePadding: 4.00,3.00
style.FrameRounding: 0.00
style.FrameBorderSize: 0.00
style.ItemSpacing: 8.00,4.00
style.ItemInnerSpacing: 4.00,4.00

ImGui::SetNextWindowSize(ImVec2(480, 480));
if (ImGui::BeginPopupModal("Broken Modal", NULL, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_MenuBar))
{
    
    if (ImGui::BeginMenuBar())
    {
        if (ImGui::BeginMenu("File"))
        {
            if (ImGui::MenuItem("CLOSE"))
            {
                ImGui::CloseCurrentPopup();
            }

            ImGui::EndMenu();
        }
        ImGui::EndMenuBar();
    }

    if (ImGui::Button("Close (try File->Close)"))
        ImGui::CloseCurrentPopup();

    ImGui::Text("Click 'File', then click off anywhere...\n"
                "File menu, should have been closed");
    ImGui::EndPopup();
}
ImGui::End();