[Godot 4.7] File Manager context menu options not appearing

Simply throwing this error: `ERROR: res://addons/mod_tool/interface/file_system/file_system_context_actions.gd:522 - Cannot call method 'get_next_selected' on a null value.`
I need to use script hooks, but I'm only patching like one script and this is preventing me from testing.

Start in addons/mod_tool/interface/file_system/file_system_context_actions.gd at line 522 and reproduce the error in Godot 4.7 using the File Manager context menu. Trace why get_next_selected is called on a null value; done means the context menu options appear without the reported error and script hooks can be tested.

Written by the indexing model from the issue text.