So, this comes from what seems to be a recently introduced bug (or feature) in my VSCode setup, but I think it makes sense to improve how we handle this in Hugo.

• For file system changes, we normally do fine grained rebuilds, but skip CHMOD events.
• But if number of events > 50 we assume a mass edit (e.g. change of Git branch), so we fall back to a full rebuild. We include CHMOD events in the count.

The fix to the above would be to filter out any CHMOD events before deciding what to do.