Store: fix label values edge case (thanos-io#7082)

If the requested label is an external label and we have series matchers
we should only return results if the series matchers actually match a
series.

Signed-off-by: Michael Hoffmann <[email protected]>

CHANGELOG.md

@@ -72,57 +72,7 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 ### Fixed
 
 - [#7083](https://github.com/thanos-io/thanos/pull/7083) Store Gateway: Fix lazy expanded postings with 0 length failed to be cached.
-- [#7080](https://github.com/thanos-io/thanos/pull/7080) Receive: race condition in handler Close() when stopped early
-- [#7132](https://github.com/thanos-io/thanos/pull/7132) Documentation: fix broken helm installation instruction
-- [#7134](https://github.com/thanos-io/thanos/pull/7134) Store, Compact: Revert the recursive block listing mechanism introduced in https://github.com/thanos-io/thanos/pull/6474 and use the same strategy as in 0.31. Introduce a `--block-discovery-strategy` flag to control the listing strategy so that a recursive lister can still be used if the tradeoff of slower but cheaper discovery is preferred.
-- [#7122](https://github.com/thanos-io/thanos/pull/7122) Store Gateway: Fix lazy expanded postings estimate base cardinality using posting group with remove keys.
-- [#7166](https://github.com/thanos-io/thanos/pull/7166) Receive/MultiTSDB: Do not delete non-uploaded blocks
-- [#7179](https://github.com/thanos-io/thanos/pull/7179) Query: Fix merging of query analysis
-- [#7224](https://github.com/thanos-io/thanos/pull/7224) Query-frontend: Add Redis username to the client configuration.
-- [#7220](https://github.com/thanos-io/thanos/pull/7220) Store Gateway: Fix lazy expanded postings caching partial expanded postings and bug of estimating remove postings with non existent value. Added `PromQLSmith` based fuzz test to improve correctness.
-- [#7225](https://github.com/thanos-io/thanos/pull/7225) Compact: Don't halt due to overlapping sources when vertical compaction is enabled
-- [#7244](https://github.com/thanos-io/thanos/pull/7244) Query: Fix Internal Server Error unknown targetHealth: "unknown" when trying to open the targets page.
-- [#7248](https://github.com/thanos-io/thanos/pull/7248) Receive: Fix RemoteWriteAsync was sequentially executed causing high latency in the ingestion path.
-- [#7271](https://github.com/thanos-io/thanos/pull/7271) Query: fixing dedup iterator when working on mixed sample types.
-- [#7289](https://github.com/thanos-io/thanos/pull/7289) Query Frontend: show warnings from downstream queries.
-- [#7308](https://github.com/thanos-io/thanos/pull/7308) Store: Batch TSDB Infos for blocks.
-- [#7301](https://github.com/thanos-io/thanos/pull/7301) Store Gateway: fix index header reader `PostingsOffsets` returning wrong values.
-
-### Added
-
-- [#7155](https://github.com/thanos-io/thanos/pull/7155) Receive: Add tenant globbing support to hashring config
-- [#7231](https://github.com/thanos-io/thanos/pull/7231) Tracing: added missing sampler types
-- [#7194](https://github.com/thanos-io/thanos/pull/7194) Downsample: retry objstore related errors
-- [#7105](https://github.com/thanos-io/thanos/pull/7105) Rule: add flag `--query.enable-x-functions` to allow usage of extended promql functions (xrate, xincrease, xdelta) in loaded rules
-- [#6867](https://github.com/thanos-io/thanos/pull/6867) Query UI: Tenant input box added to the Query UI, in order to be able to specify which tenant the query should use.
-- [#7186](https://github.com/thanos-io/thanos/pull/7186) Query UI: Only show tenant input box when query tenant enforcement is enabled
-- [#7175](https://github.com/thanos-io/thanos/pull/7175) Query: Add `--query.mode=distributed` which enables the new distributed mode of the Thanos query engine.
-- [#7199](https://github.com/thanos-io/thanos/pull/7199) Reloader: Add support for watching and decompressing Prometheus configuration directories
-- [#7200](https://github.com/thanos-io/thanos/pull/7175) Query: Add `--selector.relabel-config` and `--selector.relabel-config-file` flags which allows scoping the Querier to a subset of matched TSDBs.
-- [#7233](https://github.com/thanos-io/thanos/pull/7233) UI: Showing Block Size Stats
-- [#7256](https://github.com/thanos-io/thanos/pull/7256) Receive: Split remote-write HTTP requests via tenant labels of series
-- [#7269](https://github.com/thanos-io/thanos/pull/7269) Query UI: Show peak/total samples in query analysis
-- [#7280](https://github.com/thanos-io/thanos/pull/7281) *: Adding User-Agent to request logs
-- [#7219](https://github.com/thanos-io/thanos/pull/7219) Receive: add `--remote-write.client-tls-secure` and `--remote-write.client-tls-skip-verify` flags to stop relying on grpc server config to determine grpc client secure/skipVerify.
-- [#7297](https://github.com/thanos-io/thanos/pull/7297) *: mark as not queryable if status is not ready
-- [#7302](https://github.com/thanos-io/thanos/pull/7303) Considering the `X-Forwarded-For` header for the remote address in the logs.
-- [#7304](https://github.com/thanos-io/thanos/pull/7304) Store: Use loser trees for merging results
-
-### Changed
-
-- [#7123](https://github.com/thanos-io/thanos/pull/7123) Rule: Change default Alertmanager API version to v2.
-- [#7192](https://github.com/thanos-io/thanos/pull/7192) Rule: Do not turn off ruler even if resolving fails
-- [#7223](https://github.com/thanos-io/thanos/pull/7223) Automatic detection of memory limits and configure GOMEMLIMIT to match.
-- [#7283](https://github.com/thanos-io/thanos/pull/7283) Compact: *breaking :warning:* Replace group with resolution in compact downsample metrics to avoid cardinality explosion with large numbers of groups.
-- [#7305](https://github.com/thanos-io/thanos/pull/7305) Query|Receiver: Do not log full request on ProxyStore by default.
-
-### Removed
-
-## [v0.34.1](https://github.com/thanos-io/thanos/tree/release-0.34) - 11.02.24
-
-### Fixed
-
-- [#7078](https://github.com/thanos-io/thanos/pull/7078) *: Bump gRPC to 1.57.2
+- [#7082](https://github.com/thanos-io/thanos/pull/7082) Stores: fix label values edge case when requesting external label values with matchers
 
 ### Added
 - [#7105](https://github.com/thanos-io/thanos/pull/7105) Rule: add flag `--query.enable-x-functions` to allow usage of extended promql functions (xrate, xincrease, xdelta) in loaded rules