MainWP Child 6.4-rc.3

Fixed: Corrected guest comment attribution and user role change entries in Changes Logs.

Fixed: Displayed clearer backup download errors when verification information cannot be read.

Updated: Strengthened Dashboard request verification and replay protection.

Updated: Improved handling of folder names in Restore/Clone navigation.

Updated: Strengthened post and page checks to prevent actions on the wrong content type.

Updated: Strengthened download validation for imported post and page images while preserving imports from the connected Dashboard.