The form api integration for the module changed the required attribute field name from 'maxlength' to 'data-maxlength'
Upgrade maxlength module to any 2.0 on a site with existing forms.
Add note of change to readme file or update documentation.
I am reporting this here so any other users that have come across this issue may find this report useful.
Needs review
2.1
Documentation
Primarily changes documentation, not code. For Drupal core issues, select the Documentation component instead of using this tag. In general, component selection is preferred over tag selection.
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