These value don't dynamically go back to the FS to get updated info. So, for example, properties like .Exists will continue reporting the same value every time they're queried (even if the underlying may or may not be there).

This affected the nuget index in a minor way:

1. we would see that you didn't have a nuget index (because info.Exists was false).
2. we would download the full index.
3. we would wait a day to update the index.
4. we would ask "does the index exist?" and would be told "no" because of the cached value from before.
5. we would download the full index.

THis would repeat once a day until vs was restarted. So, overall not too bad. At worst, one extra download a day. And only as long as you were in the original VS sessoin and never closed it. But still not desirable.

We now properly re-acquire the FileInfo value when starting the update process to make sure it is at least somewhat reflective of reality.