Users submitting requests to join groups were not receiving errors when the character limit for the request was exceeded. This also affects the UX when admin-created group request templates are inserted into the request. This patch bumps the limits. - https://meta.discourse.org/t/group-membership-requests-suddenly-limited-to-274-characters/265127 - https://github.com/discourse/discourse/pull/19993
When creating a group membership request, there is no character limit on the 'reason' field. This can be potentially be used by an attacker to create enormous amount of data in the database. Co-authored-by: Ted Johansson <ted@discourse.org>