Fix duplicate accounts when searching by IP range in admin UI (#17524)

app/models/account_filter.rb

@@ -49,7 +49,7 @@ class AccountFilter
     when 'email'
       accounts_with_users.merge(User.matches_email(value))
     when 'ip'
-      valid_ip?(value) ? accounts_with_users.merge(User.matches_ip(value)) : Account.none
+      valid_ip?(value) ? accounts_with_users.merge(User.matches_ip(value).group('users.id, accounts.id')) : Account.none
     when 'invited_by'
       invited_by_scope(value)
     when 'order'

app/models/user.rb

@@ -111,7 +111,7 @@ class User < ApplicationRecord
   scope :inactive, -> { where(arel_table[:current_sign_in_at].lt(ACTIVE_DURATION.ago)) }
   scope :active, -> { confirmed.where(arel_table[:current_sign_in_at].gteq(ACTIVE_DURATION.ago)).joins(:account).where(accounts: { suspended_at: nil }) }
   scope :matches_email, ->(value) { where(arel_table[:email].matches("#{value}%")) }
-  scope :matches_ip, ->(value) { left_joins(:ips).where('user_ips.ip <<= ?', value) }
+  scope :matches_ip, ->(value) { left_joins(:ips).where('user_ips.ip <<= ?', value).group('users.id') }
   scope :emailable, -> { confirmed.enabled.joins(:account).merge(Account.searchable) }
 
   before_validation :sanitize_languages