https://1drv.ms/f/c/2d03d16892a7ea65...k4vew?e=EkA55D
is one drive link to the below comment with screen shots etc. and files
Import test – test 2 times
Edit one to new title and author (simple edit metadata individually)
Export both
Import both (again)
For me it exports the new name(file name)
On re-importing the ORGINAL name comes back
Onedrive link to the 3 files
calibre test file s before and after