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FETCH_HEAD","Cherry Pick":"git fetch https://review.opendev.org/openstack/swift refs/changes/12/1006812/1 \u0026\u0026 git cherry-pick FETCH_HEAD","Format Patch":"git fetch https://review.opendev.org/openstack/swift refs/changes/12/1006812/1 \u0026\u0026 git format-patch -1 --stdout FETCH_HEAD","Pull":"git pull https://review.opendev.org/openstack/swift refs/changes/12/1006812/1"}}},"commit":{"parents":[{"commit":"bb4d8b5b21766886d1f8e4259126c7879277f83a","subject":"Update TOX_CONSTRAINTS_FILE for stable/2026.2","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/swift/commit/bb4d8b5b21766886d1f8e4259126c7879277f83a"}]}],"author":{"name":"Alistair Coles","email":"alistairncoles@gmail.com","date":"2026-08-18 08:18:16.000000000","tz":60},"committer":{"name":"Tim Burke","email":"tim.burke@gmail.com","date":"2026-09-22 19:48:00.000000000","tz":-420},"subject":"s3api: fix mpu copy error with x-amz-copy-source-if-match","message":"s3api: fix mpu copy error with x-amz-copy-source-if-match\n\ns3api makes a HEAD response to check the source of a copy before\nmaking the PUT request to perform the copy. Previously, if the source\nwas a multipart upload object and the client copy request had an\nX-Amz-Copy-Source-If-Match, the HEAD request and therefore the client\nrequest would fail with a 412 Precondition Failed response. This was\nbecause the HEAD request did not include an X-Backend-Etag-Is-At header\nto direct the object-server to match against the\nX-Object-Sysmeta-S3api-Etag metadata.\n\nA similar error occurs when an X-Amz-Copy-Source-If-Match is sent with\nan UploadPartCopy request. The aws-cli has started to send this header\nsince version 2.32.2 (see bug report).\n\nThis patch adds the X-Backend-Etag-Is-At header to the copy source\ncheck HEAD response for both CopyObject and UploadPartCopy\nrequests. The header value specifies the X-Object-Sysmeta-S3api-Etag\nmetadata key and, to cater for older MPUs, the legacy\nX-Object-Sysmeta-Swift3-Etag metadata key.\n\nCloses-Bug: #2147177\nChange-Id: I6ba1e53eafe1437af168c893c9ee8f708e0c294a\nCo-Authored-By: Nathaniel Martes \u003cnmartes@NVIDIA.com\u003e\nSigned-off-by: Alistair Coles \u003calistairncoles@gmail.com\u003e\nAssisted-By: Claude Opus 5 \u003cnoreply@anthropic.com\u003e\n(cherry picked from commit e32bc963df516d6465912e5d2d6924925549c1da)\n","web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/swift/commit/747c68b77373762e4ddfbfbb3df051a3a6c8ada0"}],"resolve_conflicts_web_links":[{"name":"gitea","tooltip":"Open in GitWeb","url":"https://opendev.org/openstack/swift/commit/747c68b77373762e4ddfbfbb3df051a3a6c8ada0"}]},"branch":"refs/heads/stable/2026.2"}},"requirements":[],"submit_records":[{"rule_name":"gerrit~DefaultSubmitRule","status":"CLOSED","labels":[{"label":"Verified","status":"MAY","applied_by":{"_account_id":22348,"name":"Zuul","username":"zuul","tags":["SERVICE_USER"]}},{"label":"Code-Review","status":"MAY","applied_by":{"_account_id":15343,"name":"Tim Burke","email":"tburke@nvidia.com","username":"tburke"}},{"label":"Workflow","status":"MAY","applied_by":{"_account_id":15343,"name":"Tim Burke","email":"tburke@nvidia.com","username":"tburke"}}]}],"submit_requirements":[{"name":"Verified","description":"Verified in gate by CI","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Verified\u003dMAX AND -label:Verified\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Verified\u003dMAX"],"failing_atoms":["label:Verified\u003dMIN"],"atom_explanations":{"label:Verified\u003dMAX":"","label:Verified\u003dMIN":""}}},{"name":"Code-Review","description":"Code reviewed by core reviewer","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Code-Review\u003dMAX AND -label:Code-Review\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Code-Review\u003dMAX"],"failing_atoms":["label:Code-Review\u003dMIN"],"atom_explanations":{"label:Code-Review\u003dMAX":"","label:Code-Review\u003dMIN":""}}},{"name":"Workflow","description":"Approved for gate by core reviewer","status":"SATISFIED","is_legacy":false,"submittability_expression_result":{"expression":"label:Workflow\u003dMAX AND -label:Workflow\u003dMIN","fulfilled":true,"status":"PASS","passing_atoms":["label:Workflow\u003dMAX"],"failing_atoms":["label:Workflow\u003dMIN"],"atom_explanations":{"label:Workflow\u003dMAX":"","label:Workflow\u003dMIN":""}}}]}