*******************
Fixes
-----
- A regression occurred in the newly introduced support using
``LoginRequiredMiddleware``, fixed.
- For email verification by link, it is not an issue if the user runs into rate
limits. The reason is that the link is session independent. Therefore, if the
user hits rate limits, we can just silently skip sending additional
verification emails, as the previous emails that were already sent still
contain valid links. This is different from email verification by code. Here,
the session contains a specific code, meaning, silently skipping new
verification emails is not an option, and we must block the login instead. The
latter was missing, fixed.