X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/458436270ce8fb80d421d55e192236c5ac4a225e..d63d6ba645b8e34cf9d248bd0407fab0b9ef6534:/lib/cloud/price.go

diff --git a/lib/cloud/price.go b/lib/cloud/price.go
index 234564b684..59f5afc94b 100644
--- a/lib/cloud/price.go
+++ b/lib/cloud/price.go
@@ -10,9 +10,9 @@ import (
 
 // NormalizePriceHistory de-duplicates and sorts instance prices, most
 // recent first.
-//
-// The provided slice is modified in place.
 func NormalizePriceHistory(prices []InstancePrice) []InstancePrice {
+	// copy provided slice instead of modifying it in place
+	prices = append([]InstancePrice(nil), prices...)
 	// sort by timestamp, newest first
 	sort.Slice(prices, func(i, j int) bool {
 		return prices[i].StartTime.After(prices[j].StartTime)