Comment 10 for bug 1838046

Why reconnect - because it might have stale data I'd guess - even if it is only meta updates.
The TL;DR I guess is - if you can unmount network mounts before disconnecting network.

Yes adding that before suspend/shutdown should help your case - but it is a force option, so unmounting while you still have network is the safer option.

If you happen to know that your connections are unreliable those mounts could also get some options to use only sync transfers and no write caches I guess. That would minimize the potential fallout at the price of some performance.

Disclaimer: I'm not the biggest expert on this, I just shared my experience with it so far.