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-rw-r--r--app/models/account.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/app/models/account.rb b/app/models/account.rb
index be1968fa6..cc3a8f3df 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -64,6 +64,7 @@ class Account < ApplicationRecord
   USERNAME_RE   = /[a-z0-9_]+([a-z0-9_\.-]+[a-z0-9_]+)?/i
   MENTION_RE    = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE})(?:@[[:word:]\.\-]+[[:word:]]+)?)/i
   URL_PREFIX_RE = /\Ahttp(s?):\/\/[^\/]+/
+  USERNAME_ONLY_RE = /\A#{USERNAME_RE}\z/i
 
   include Attachmentable
   include AccountAssociations
@@ -84,7 +85,7 @@ class Account < ApplicationRecord
   validates_with UniqueUsernameValidator, if: -> { will_save_change_to_username? }
 
   # Remote user validations
-  validates :username, format: { with: /\A#{USERNAME_RE}\z/i }, if: -> { !local? && will_save_change_to_username? }
+  validates :username, format: { with: USERNAME_ONLY_RE }, if: -> { !local? && will_save_change_to_username? }
 
   # Local user validations
   validates :username, format: { with: /\A[a-z0-9_]+\z/i }, length: { maximum: 30 }, if: -> { local? && will_save_change_to_username? && actor_type != 'Application' }