fix reflog failing to properly refresh

vendor/github.com/sanity-io/litter/util.go

@@ -0,0 +1,28 @@
+package litter
+
+import (
+	"reflect"
+)
+
+// deInterface returns values inside of non-nil interfaces when possible.
+// This is useful for data types like structs, arrays, slices, and maps which
+// can contain varying types packed inside an interface.
+func deInterface(v reflect.Value) reflect.Value {
+	if v.Kind() == reflect.Interface && !v.IsNil() {
+		v = v.Elem()
+	}
+	return v
+}
+
+func isPointerValue(v reflect.Value) bool {
+	switch v.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr, reflect.Slice, reflect.UnsafePointer:
+		return true
+	}
+	return false
+}
+
+func isZeroValue(v reflect.Value) bool {
+	return (isPointerValue(v) && v.IsNil()) ||
+		(v.IsValid() && v.CanInterface() && reflect.DeepEqual(v.Interface(), reflect.Zero(v.Type()).Interface()))
+}