From 1991f07e85bfb0a5e0e013142dcc650db5110955 Mon Sep 17 00:00:00 2001
From: dsagar <dsagar@verizonmedia.com>
Date: Fri, 18 Feb 2022 09:47:08 -0800
Subject: [PATCH] fix(2646): Deep copy parent build meta before deleting the
 parameters

---
 launch.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/launch.go b/launch.go
index e16055a..8b61d27 100644
--- a/launch.go
+++ b/launch.go
@@ -310,8 +310,15 @@ func SetExternalMeta(api screwdriver.API, pipelineID, parentBuildID int, mergedM
 			externalMetaFile := "sd@" + strconv.Itoa(parentJob.PipelineID) + ":" + parentJob.Name + ".json"
 			writeMetafile(metaSpace, externalMetaFile, metaLog, parentBuild.Meta)
 			if join {
+				marshallValue, err := json.Marshal(parentBuild.Meta)
+				if err != nil {
+            		return resultMeta, fmt.Errorf("Cloning meta of Parent Build ID %d: %v", parentBuildID, err)
+				}
+				var externalParentBuildMeta map[string]interface{}
+				json.Unmarshal(marshallValue, &externalParentBuildMeta)
+
 				// Always exclude parameters from external meta
-				delete(parentBuild.Meta, "parameters")
+				delete(externalParentBuildMeta, "parameters")
 
 				resultMeta = deepMergeJSON(resultMeta, parentBuild.Meta)
 			}