Tested versions

• Reproducible since 4.4.dev [baf03e4]

System information

Godot v4.4.dev7 - Windows 11 (build 22631) - Multi-window, 1 monitor - Vulkan (Mobile) - dedicated AMD Radeon RX 6700 XT (Advanced Micro Devices, Inc.; 32.0.12011.1036) - AMD Ryzen 5 5600X 6-Core Processor (12 threads)

Issue description

GH-99639 exposed the GridMapEditorPlugin class to scripts.

However, the set_selected_palette_item function from this class does not update the cursor mesh as it would when selecting from the MeshLibrary palette.
The palette selection updates correctly and you will paint with the correct mesh item, but the cursor will still show the old mesh.

Steps to reproduce

0. Open the MRP
1. Make sure that the GridMapTool plugin is enabled
2. Select the GridMap node in the scene tree
3. In the GridMap bottom panel, select the paint tool so you can see the cursor mesh
4. Open the new "GridMap Tool" panel in the bottom left dock
5. Click a button ("red", "green", "blue") to select a mesh - this will call set_selected_palette_item
6. Compare your choice with the current GridMap cursor.
   It should be the same color as your selection in the tool panel.

Minimal reproduction project (MRP)

godot-gridmap-cursor.zip