Bugfix - approvals not being applied for PRs with no diff since review

Author: BakerNet

README.md

@@ -4,7 +4,7 @@ Code Ownership & Review Assignment Tool - GitHub CODEOWNERS but better
 
 [![Go Report Card](https://goreportcard.com/badge/github.com/multimediallc/codeowners-plus)](https://goreportcard.com/report/github.com/multimediallc/codeowners-plus?kill_cache=1)
 [![Tests](https://github.com/multimediallc/codeowners-plus/actions/workflows/go.yml/badge.svg)](https://github.com/multimediallc/codeowners-plus/actions/workflows/go.yml)
-![Coverage](https://img.shields.io/badge/Coverage-59.8%25-yellow)
+![Coverage](https://img.shields.io/badge/Coverage-59.9%25-yellow)
 [![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)
 [![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](CODE_OF_CONDUCT.md)
 

internal/github/approvals.go

@@ -60,9 +60,6 @@ func checkStale(
 		// for each file in the changes since approval
 		// if the file is owned by the approval owner, mark stale
 		// else, mark all overlapping owners as satisfied
-		if len(approval.Diff) == 0 {
-			continue
-		}
 		stale := false
 		for _, diffFile := range approval.Diff {
 			fileOwners, ok := fileReviewerMap[diffFile.FileName]