Put it in the wrong place, oops

Author: grynspan

Package.swift

@@ -479,11 +479,12 @@ extension Array where Element == PackageDescription.CXXSetting {
       result.append(.define("SWT_TESTING_LIBRARY_COMMIT_HASH", to: #""\#(git.currentCommit)""#))
       if git.hasUncommittedChanges {
         result.append(.define("SWT_TESTING_LIBRARY_COMMIT_MODIFIED", to: "1"))
-      } else if let gitHubSHA = Context.environment["GITHUB_SHA"] {
-        // When building in GitHub Actions, the git command may fail to get us the
-        // commit hash, so check if GitHub shared it with us instead.
-        result.append(.define("SWT_TESTING_LIBRARY_COMMIT_HASH", to: #""\#(gitHubSHA)""#))
       }
+    } else if let gitHubSHA = Context.environment["GITHUB_SHA"] {
+      // When building in GitHub Actions, the git command may fail to get us the
+      // commit hash, so check if GitHub shared it with us instead.
+      result.append(.define("SWT_TESTING_LIBRARY_VERSION", to: "0"))
+      result.append(.define("SWT_TESTING_LIBRARY_COMMIT_HASH", to: #""\#(gitHubSHA)""#))
     }
 
     return result