Shader editor missing menu bar when empty

[timothyqiu]

Tested versions

Reproducible since 4.5.beta7

System information

Godot v4.5.rc2 - Arch Linux # 1 SMP PREEMPT_DYNAMIC Thu, 04 Sep 2025 23:18:13 +0000 on X11 - X11 display driver, Multi-window, 2 monitors - OpenGL 3 (Compatibility) - NVIDIA GeForce RTX 3060 Ti (nvidia; 580.82.07) - 13th Gen Intel(R) Core(TM) i5-13400F (16 threads) - 15.37 GiB memory

Issue description

When no shader file is open, the shader editor is completely empty:

• the File menu is missing (no shader file can be created)
• the Make Float button is missing

Before 4.5.beta7:

Steps to reproduce

Open the editor, switch to the Shader Editor. Make sure no shader file is open.

Minimal reproduction project (MRP)

N/A

[bruvzg]

Probably caused by #109973