Modal popups result in panic due to scissor rect problem

[BeastLe9enD]

Description

When I create a modal popup, imgui crashes:

2023-04-28T19:49:10.076Z ERROR [wgpu::backend::direct] Handling wgpu errors as fatal by default
thread 'main' panicked at 'wgpu error: Validation Error

Caused by:
    In a RenderPass
      note: encoder = `<CommandBuffer-(0, 1129, Vulkan)>`
    In a set_scissor_rect command
    Scissor Rect { x: 0, y: 0, w: 1602, h: 902 } is not contained in the render target Extent3d { width: 1600, height: 900, depth_or_array_layers: 1 }

Repro steps

Run the demo example (and select the modal popup in the imgui demo window)

System Information

imgui = { version = "0.11.0", features = ["docking"] }
imgui-sys = { version = "0.11.0", features = ["docking"] }
imgui-wgpu = { git = "https://github.com/Yatekii/imgui-wgpu-rs" }
imgui-winit-support = "0.11.0"

[junglie85]

Is this an imgui-wgpu issue or an imgui issue? I have the same problem and raised imgui-rs/imgui-rs#731.

Would taking the minimum of the scissor rect and the render target extent be a suitable approach to resolving the problem?