[[email protected]] watching on static's updates not work

[mindon]

watching on static is not working any more,
even after deno task build, those new static files already appear in _fresh/snapshot.json

deno 2.0.0
jsr:@fresh/core@^2.0.0-alpha.22

here's the steps:

1. echo world > static/hello.txt
2. fresh detected file changed, and restarted
3. cat _fresh/snapshots.json | grep hello.txt not found
4. deno task build fresh not restarting, visit hello.txt 404
5. cat _fresh/snapshots.json | grep hello.txt found
6. touch static/hello.txt fresh detected file changed, and restarted
7. visit hello.txt, ok

here's the problem:

first, file change detected, but snapshots.json not updated
then, after task build, sanpshots.json updated, fresh not restart