fix: slash window progress reset (#1471)

## Description

Fixes an issue where the slash window progress doesn't reset at the end of the slashing window

---

### Author Checklist

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please add links to any relevant follow up issues._

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] added appropriate labels to the PR
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/umee-network/umee/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
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- [ ] manually tested (if applicable)

CHANGELOG.md

@@ -46,6 +46,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+### Fixes
+
+- [1471](https://github.com/umee-network/umee/pull/1471) Fix slash window progress query.
+
 ## [v3.0.2](https://github.com/umee-network/umee/releases/tag/v3.0.2) - 2022-09-29
 
 ### Fixes

x/oracle/keeper/grpc_query.go

@@ -149,8 +149,8 @@ func (q querier) SlashWindow(
 	params := q.GetParams(ctx)
 
 	return &types.QuerySlashWindowResponse{
-		WindowProgress: (uint64(ctx.BlockHeight()) / params.VotePeriod) %
-			params.SlashWindow,
+		WindowProgress: (uint64(ctx.BlockHeight()) % params.SlashWindow) /
+			params.VotePeriod,
 	}, nil
 }