7f1fa52dd3
On ansible-core 2.19.0, invoking macro like this (which only outputted something in its `if` block, not in `else`), resulted in a macro outputting `None`. One way to work around it is to add an explicit `else` block which also outputs something. A better way to work around it is to only invoke the macro if it has something to output. Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/4458