Properties: Do not strip hashtags in tags

  1. YAML is not a mess and is much better standardized than markdown. However, it is hard to write properly formatted YAML by hand.
  2. We have decided to take a more active role in the YAML management and preserving exactly what you wrote is non-goal of change. As long as what we rewrite is semantically the same, we are gonna be okay with it.
  3. Regarding this specific BR: yes, we intentionally introduced a semantic change. We deprecated the format “#atag” and when we encounter it we rewrite it without the hashtag.

Please, keep the thread in topic with rants about point number 3. Rants about point 2 should go in a separate thread.