YAML appears to require braces for sub-field autocomplete

[malte-prophet]

When using YAML schema mode, I cannot get autocomplete suggestions to show up if I am using simple indents for object properties. It works when enclosing the object in braces { ... }, but nobody writes YAML like that.

Here, there are two top-level fields, object and object2, both with the same schema (properties propA, string, and propB, boolean. Autocomplete only with braces:

However, validation is still performed, so the schema appears to be parsed correctly:

Live example (including schema src): https://stackblitz.com/edit/stackblitz-starters-c32hfjfr?file=src%2Fmain.ts