Godot shouldn't display the TileSet tab when re-importing a tileset image, if a TileMapLayer is selected

[TX256]

I jump between a graphics editor and Godot all the time when creating tilemaps, so that I can instantly see how my map looks after making changes to the tileset in the graphics editor.

Whenever I export my tiles from the graphics editor, Godot naturally re-imports the image file when the window is activated.

As a result, if a TileMapLayer is selected in the scene tree, re-importing also always needlessly pops up the TileSet tab on the bottom of the editor.

This is a small, but annoying usability issue. Perhaps I should open a bug issue for this?