kCFURLVolumeIsAutomountedKey missing, from Time Machine

when I launch mvim from the command line, then I am seeing messages throughout the day stream to the terminal that look like this:

2019-04-29 02:00:00.308 MacVim[25865:2008397] kCFURLVolumeIsAutomountedKey missing for file:///Volumes/ccc/: Error Domain=NSCocoaErrorDomain Code=257 "The file “ccc” couldn’t be opened because you don’t have permission to view it." UserInfo={NSURL=file:///Volumes/ccc/, NSFilePath=/Volumes/ccc, NSUnderlyingError=0x7fd205d05aa0 {Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied"}}

2019-04-29 03:00:15.539 MacVim[25865:2016017] kCFURLVolumeIsAutomountedKey missing for file:///Volumes/timemachine/: Error Domain=NSCocoaErrorDomain Code=257 "The file “timemachine” couldn’t be opened because you don’t have permission to view it." UserInfo={NSURL=file:///Volumes/timemachine/, NSFilePath=/Volumes/timemachine, NSUnderlyingError=0x7fd2072289d0 {Error Domain=NSPOSIXErrorDomain Code=13 "Permission denied"}}

These seem to coincide time wise with when my Time Machine and/or Carbon Copy Cloner backups are timed to auto mount SMB shares in order to run backups. No idea why this would cause macvim to complain. I don't remember this happening before, but its quite annoying to have my terminal clutter up. Mvim seems to run ok otherwise.

Detailed steps to reproduce the behavior:

1. Run mvim from the command line
2. Wait for Timemachine to run a backup over network

Vim Version 8.1.950
OSX sierra 10.12.6

Commencez par exécuter mvim depuis la ligne de commande sous macOS Sierra et reproduisez l’avertissement lorsque Time Machine ou Carbon Copy Cloner monte les partages SMB de sauvegarde. Identifiez quel point d’entrée de MacVim émet le message kCFURLVolumeIsAutomountedKey et déterminez quel comportement devrait changer sans affecter l’utilisation normale. Le travail est considéré comme terminé lorsque les avertissements répétés du terminal n’apparaissent plus pendant le montage des sauvegardes et que mvim continue de fonctionner normalement.