Lorri is not able to access a file in KBFS

I have [Lorri](https://github.com/target/lorri) installed as a LaunchAgent in my user directory (i.e `~/Library/LaunchAgents/lorri.plist`). I verified that Lorri is running as my user (same UID), but it somehow cannot access the same file that I can. Lorri is printing the following error:

```
error: opening file /Volumes/Keybase/team/team-name/path/to/file: Operation not permitted.
```

This is working fine on Linux. The problem is present only on Darwin. I'm running Catalina 10.15.4.

my log id: 6b5153e646fb9d8e0d34b91c

Start by inspecting the ~/Library/LaunchAgents/lorri.plist setup and reproducing access to the KBFS path on Darwin 10.15.4, using log ID 6b5153e646fb9d8e0d34b91c to compare the failure. Done means Lorri can open the same KBFS file as the logged-in user without the “Operation not permitted” error.

Written by the indexing model from the issue text.