After update I have an error:
General error: 1525 Incorrect TIMESTAMP value: 'null' (SQL: select gp_users
.*, gp_recipients
.discussion_id
as pivot_discussion_id
, gp_recipients
.user_id
as pivot_user_id
, gp_recipients
.created_at
as pivot_created_at
, gp_recipients
.updated_at
as pivot_updated_at
from gp_users
inner join gp_recipients
on gp_users
.id
= gp_recipients
.user_id
where gp_recipients
.removed_at
!= null and gp_recipients
.discussion_id
in (3))
gp_recipients
table is empty in my db