Fix: pass protocol to Meta.from_info in _filter_changed (fixes treeverse/dvc#10594)

[ryan-williams]

Summary

_filter_changed() in fetch.py calls Meta.from_info(info) without the protocol argument, so for S3 sources the ETag is never extracted (S3's s3fs returns "ETag" with uppercase key; Meta.from_info without protocol only checks lowercase "etag").

This breaks import-url --no-download + pull for S3 sources: the ETag comparison always fails, the entry is dropped, fetch reports "Everything is up to date", and checkout fails because the file isn't in cache.

Fix

# Before (line 79):
meta = Meta.from_info(info)

# After:
meta = Meta.from_info(info, data_fs.protocol)

This matches the correct usage in save.py:_meta_matches (same commit f398036), which already passes fs.protocol.

Related

• Fixes treeverse/dvc#10594
• Regression introduced in dvc-data 3.9.0

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 73.82%. Comparing base (e38c8c2) to head (9956cd7).
⚠️ Report is 71 commits behind head on main.

Files with missing lines	Patch %	Lines
src/dvc_data/index/fetch.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #656      +/-   ##
==========================================
+ Coverage   72.42%   73.82%   +1.40%     
==========================================
  Files          67       65       -2     
  Lines        5132     5357     +225     
  Branches      605      622      +17     
==========================================
+ Hits         3717     3955     +238     
+ Misses       1227     1209      -18     
- Partials      188      193       +5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[skshetry]

@ryan-williams, thank you for contributing. Could you please sign the CLA?

[skshetry]

Released in https://github.com/treeverse/dvc-data/releases/tag/3.18.3.