When reacting with different custom emojis with the same shortcode, it would count as an already present reaction and processed, bypassing the limit.
Signed-off-by: Plastikmensch <plastikmensch@users.noreply.github.com>
the maximum number of reactions was previously
hardcoded to 8. this commit also fixes an
incorrect query in StatusReactionValidator where
it didn't count per-user reactions but the total
amount of different ones.
