From add77903e9bc9cd4cbb805b6e8e438155438f5f0 Mon Sep 17 00:00:00 2001
From: Nikita Skovoroda <chalkerx@gmail.com>
Date: Thu, 25 Jan 2024 16:30:23 +0300
Subject: [PATCH] fix: we are sure about type if parent checked it

Type delta calculation here is needed for discriminator to be sure
that we can compile.
---
 src/compile.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/compile.js b/src/compile.js
index 7a9f8ae..aa05996 100644
--- a/src/compile.js
+++ b/src/compile.js
@@ -1284,7 +1284,10 @@ const compileSchema = (schema, root, opts, scope, basePathRoot = '') => {
           evaluateDelta({ type: [current.type] })
           return null
         }
-        if (parentCheckedType(...typearr)) return null
+        if (parentCheckedType(...typearr)) {
+          evaluateDelta({ type: typearr })
+          return null
+        }
         const filteredTypes = typearr.filter((t) => typeApplicable(t))
         if (filteredTypes.length === 0) fail('No valid types possible')
         evaluateDelta({ type: typearr }) // can be safely done here, filteredTypes already prepared