diff --git a/internal/buffer/settings.go b/internal/buffer/settings.go
index 9e76697c..9d671dcf 100644
--- a/internal/buffer/settings.go
+++ b/internal/buffer/settings.go
@@ -18,6 +18,7 @@ func (b *Buffer) SetOptionNative(option string, nativeValue interface{}) error {
 				if !b.isModified {
 					calcHash(b, &b.origHash)
 				} else {
+					// prevent using an old stale origHash value
 					b.origHash = [md5.Size]byte{}
 				}
 			}