Problems with `{{ }}` below `{% %}`

As you can see in the screenshot the first pair of braces is highlighted, but all braces below `{% %}` aren't:


Start by reproducing the highlighting shown in the linked screenshot and inspect the syntax-highlighting rules for nested `{{ }}` and `{% %}` constructs. No files or tests are named; done means brace highlighting remains consistent below the `{% %}` block and the behavior is covered by a relevant regression test if one exists.

Written by the indexing model from the issue text.