chore: add a comment

uptrace · Oct 26, 2024 · b4e1de0 · b4e1de0
1 parent 39fda4e
commit b4e1de0
Showing 1 changed file with 4 additions and 5 deletions.
diff --git a/model_map.go b/model_map.go
@@ -1,6 +1,7 @@
 package bun
 
 import (
+	"bytes"
 	"context"
 	"database/sql"
 	"reflect"
@@ -82,11 +83,9 @@ func (m *mapModel) Scan(src interface{}) error {
 		return m.scanRaw(src)
 	case reflect.Slice:
 		if scanType.Elem().Kind() == reflect.Uint8 {
-			srcB := src.([]byte)
-			src2 := make([]byte, len(srcB))
-			copy(src2, srcB)
-
-			return m.scanRaw(src2)
+			// Reference types such as []byte are only valid until the next call to Scan.
+			src := bytes.Clone(src.([]byte))
+			return m.scanRaw(src)
 		}
 	}