7aebba7, which added anchor links to comments, also incorrectly added
only the *key* for the `:id` attribute to the `li` element for
issue *events*, swallowing up the next form (which happened to be the
username) as the value. this adds a *proper* value for the `:id`
attribute, bringing back the actual display of the username.
Fixes: b/97
Change-Id: I33ee628ddfd4a291e069980512fcc5f74014aac4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3141
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
a7d07e1a8a