The mo_form_temporary_xml is utilised to capture active forms whilst they are in use. In scenarios such as system errors or closing the browser prematurely by exiting with the browser cross rather than the Mosaic cross or logout button, this leaves a record in the database.
This table was not cleared down, so the table was increasing in size and causing performance issues, as well as leading to errors where the xml was out of date following an upgrade to a recent version or update to a form.
The form temporary XML table is now cleared down upon every upgrade of Mosaic from version 22.1.0.0.