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Changes between Initial Version and Version 1 of Ticket #3100, comment 19

initial	v1
9	9	`parse_until` is used by tags that use final (or intermediary) tags, like `{% block ... %} {% endblock %}`, or `{% for ..%} {% empty %} {% endfor %}`. However, the current implementation requires that the exact content of the final (or intermediary) tag is known by the time the initial tag is compiled. This makes it impossible to have variable arguments on the intermediary tag.
10	10
11		This feature is used to reject unmatched block/endblock tags: `{% block foo %}{% endblock bar %}`. I think this check should be delegated to the block tag itself. The alternative is to use Chris' technique — looking for an exact match by default, and for a prefix match for elements that end with a space — but it feels hackish.
	11	This feature is used to reject unmatched block/endblock tags: `{% block foo %}{% endblock bar %}`. I think this check could be delegated to the block tag itself. The alternative is to use Chris' technique — looking for an exact match by default, and for a prefix match for elements that end with a space — but it feels hackish.