fix find and delete for block 268561

script/src/script.rs

@@ -174,7 +174,7 @@ impl Script {
 		let len = data.len();
 		let end = self.data.len();
 
-		if len > end {
+		if len > end || len == 0 {
 			return self.data.to_vec().into()
 		}
 
@@ -574,4 +574,11 @@ OP_ADD
 		let script: Script = script.into();
 		assert_eq!(script.sigops_count(false), 20001);
 	}
+
+	#[test]
+	fn test_script_empty_find_and_delete() {
+		let s: Script = vec![Opcode::OP_0 as u8].into();
+		let result = s.find_and_delete(&[]);
+		assert_eq!(s, result);
+	}
 }