i figure out that some files are marked as changed for nothing

when i open Maps,UI,sometimes do some change and revert, sometimes done nothing, but the version control has marked them as changed.

i open the 2 files with Beyond Compare, and confirm that they are different.

but as a developer, these so called changes are garbage changes.

is ue compile the compile time itself into the .asset files? is there anything to do to tell ue do not create such kind changes?

thank u very much