An extra sync loop would be performed for every object downloaded, so a
download to an empty database could result in a huge number of
unnecessary loops. This was a regression from 52932b6eb, which started
queuing auto-syncs while a sync was in progress. The fix here is to skip
auto-sync for all objects saved from a sync download.
There are two new mechanisms involved:
- Event-level notifier options that get passed to passed to notify() at
the top level of extraData rather than being included with every
object (e.g., because `skipAutoSync` should apply to an entire save
transaction)
- The ability to pass event-level notifier options when initializing
a Zotero.Notifier.Queue, such as the one used for sync downloads
7ace5ea29e
