From 5054057acdcbf805eb24fc01521728c9bcc7bdd4 Mon Sep 17 00:00:00 2001
From: Tom Bevan <tom.bevan@r3labs.io>
Date: Mon, 12 Jul 2021 17:21:31 +0100
Subject: [PATCH] assign an empty type when patch value is nil

---
 change_value.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/change_value.go b/change_value.go
index 7d7ca08..4d721e9 100644
--- a/change_value.go
+++ b/change_value.go
@@ -123,7 +123,12 @@ func (c *ChangeValue) Set(value reflect.Value, convertCompatibleTypes bool) {
 			}
 			c.target.Set(value.Convert(c.target.Type()))
 		} else {
-			c.target.Set(value)
+			if value.IsValid() {
+				c.target.Set(value)
+			} else {
+				t := c.target.Elem()
+				t.Set(reflect.Zero(t.Type()))
+			}
 		}
 		c.SetFlag(FlagApplied)
 	}