Plugin tries to use a freed object in the documentation help

[AnidemDex]

First of all: this is an underrated and amazing plugin.

That being said, let's get directly to the point:

That happens when the plugin tries to generate a TreeItem for the class but the tree item was freed by the editor. Why was freed? Because I used the search bar.

Godot-Custom-Class-Docs/addons/silicon.util.custom_docs/plugin.gd

Lines 229 to 232 in 17c6316

	if doc_items.get(name + str(type)):
	doc_items[name + str(type)].clear_custom_color(0)
	doc_items[name + str(type)].clear_custom_color(1)
	return doc_items[name + str(type)]

I solved it just doing:

...
if is_instance_valid(doc_items.get(name + str(type))):
...

I'll make a PR if I got a little time

[AnidemDex]

This happens too when you close and open the help popup and try to use the cached tree item: