change to value of property in an @observable object doesn't trigger @autorun

[ericvida]

Description

change to value of property in an @observable object doesn't trigger @autorun
and I expected it to. Is this a feature or a bug?

	@observable query = {word: "", definition: ""}
	@autorun def search
		unless query.word is ""
			APP.filtered_words = APP.words.filter(do $1.name.includes query.word )
		else
			APP.filtered_words = APP.words

This works

	@observable wordQuery = ""
	@observable definitionQuery = ""
	@autorun def search
		unless wordQuery is ""
			APP.filtered_words = APP.words.filter(do(word) word.name.includes wordQuery )
		else
			APP.filtered_words = APP.words

Reproduction

No response

System Environment

No response