Filter block escapes input and | safe input together when a block mixes them

[leehack]

A filter block that mixes input-marked text with | safe input-marked text escapes all of it before the filter runs. So the safe part comes out escaped and the filter sees escaped text.

With x = JinjaString.user('<b>'):

{% filter upper %}{{ x }}{{ x | safe }}{% endfilter %}

• Actual: &LT;B&GT;<B>
• Expected: &lt;B&gt;<B>. The filter should see raw text, the marked part should be escaped once at output, and the safe part should stay raw.

Blocks that are all input or all safe work since #34. A mixed block needs the safe flag tracked per output part, not per value.

Accepted as a known limitation in #34.

[leehack]

Closing. Jinja2 3.1.6 with autoescape renders this template as &LT;B&GT;<B>, the same as main and #34. Jinja2 is dinja's reference for escaping, so the current output is correct and there is no limitation to fix.