TypeError: implode(): Argument #1 ($pieces) must be of type array, string given in implode() (line 338 of modules/contrib/entity_export_csv/src/Plugin/FieldTypeExportBase.php)

Problem/Motivation

Type error for internal functions happens when use PHP 8
https://www.php.net/releases/8.0/en.php#consistent-type-errors-for-inter...

Steps to reproduce

• Install Address module
• add address field to a content type
• create entity export csv on /admin/config/content/entity-export-csv/configurations.
• configure the entity csv export config entity to make Address field values exportable
• create an entity of the recently updated Content Type, but leave the address field empty
• create one more entity of the recently updated Content Type and fill the address field
• try to export the content on /admin/content/entity-export-csv page