Nested blocks don't work inside an ifnotequal tag

[Manuel Strehl <m.strehl@…>]

The blocks inside a 'master' block can't be overwritten, if they are inside an {% ifnotequal %} tag (and, I suspect, any other 'if'-like tag, too). Consider this master template for basic pagination:

​http://dpaste.com/hold/133172/

If I want to overwrite {% block pagination_start %}, the extending template is ignored alltogether:

​http://dpaste.com/hold/133173/

which displays exactly the same as the master template.

Expected Output:

The rendering should be like the master, but the first and the last list item should have vanished.

[Johannes Dollinger]

Duplicate of #6510.