Climate-REF/climate-ref

ref test-cases fetch re-resolves from the search spec, not the committed catalog

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#737 opened on Jun 18, 2026

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buggood first issue

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Description

Describe the bug

When a catalog already exists, ref test-cases fetch reruns the search rather than just fetching the datasets in the catalog. This has implications for reproducibility.

Expected behavior

If a catalog exists everyone uses the same datasets, unless a user runs with --regen.

The fetch process should use the instance ids from the catalog instead of the general search query.

Contributor guide

Research direction
Examine the fetch command logic and understand how it currently resolves to search spec instead of using existing catalog instance IDs. Look for the code path that handles existing catalogs and modify it to reuse IDs.
Tech stack
python
Domain
backenddata
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65