File events are dropped between initial crawl and watcher creation

[aleclarson]

Idk if there's much we can do about this, since initial crawl needs to come before watcher creation, so the watcher's ignore option can be inferred from the only and skip options of Filespy.

[aleclarson]

The good news is there's only 1-2ms between initial crawl completing and the watcher being ready (at least on my machine).