Output is rendered on top of collapsed area

[anthroid]

REST Book v6.2.1

Steps to reproduce:

1. Create a new REST notebook.
2. Enter a GET request that will return a JSON result.
3. Run the request once.
4. Collapse the output area by clicking the folding indicator.
5. Run the request again while the output is folded.
6. Note the request output is rendered un-collapsed on top of the collapsed output area.

Expected behavior:

Either:

1. The output would be rendered inside the collapsed area and remain collapsed, or
2. The output area would be automatically expanded and rendered normally.