Fixes “DeprecationWarning: 'jinja2.Markup' is deprecated and will be
removed in Jinja 3.1. Import 'markupsafe.Markup' instead.”
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Using user IDs instead of emails is more reliable since users can
have arbitrarily complex emails that are hard to encode in a URL.
This has led to NoReverseMatch exceptions in the past.
When calling some functions or assigning values to certain attributes,
the arguments/right operand do not match the exact type that the
functions/attributes expect, and thus we fix that by converting types
beforehand.
Anders Kaseorg
Eeshan Garg
PIG208
Tim Abbott