Modifing locale/en_US/author.po key submission.submit.coverNote to a string longer than 255 characters causes SQL error

Software Support
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Describe the issue or problem
On clicking ‘save and continue’ on step 1 of submission, screen hangs until ‘cancel’ is clicked. Submitted metadata is not stored.

Steps I took leading up to the issue

  1. enable custom locale plugin
  2. modify locale/en_US/author.po key submission.submit.coverNote to a string longer than 255 characters
  3. try to make a submission

What application are you using?
OJS 3.3.0-11
mysql 8.0.32-0ubuntu0.20.04.2
php 7.4.3-4ubuntu2.17

Additional information
‘title’ column of notes table in DB is varchar(255).
/var/log/apache2/error.log gives
PHP Fatal error: Uncaught PDOException: SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column ‘title’ at row 1 in /var/www/html/ojs/ojs/lib/pkp/lib/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOStatement.php:115