fix: simplify self-file reference check

Author: vadyvas

__tests__/bundle/self-file-ref-normalization/openapi.yaml

@@ -2,16 +2,12 @@ openapi: 3.0.0
 info:
   title: Self-file ref normalization
   version: 1.0.0
-  license:
-    name: MIT
 servers:
   - url: http://example.com
 security: []
 paths:
   /test:
     get:
-      summary: Test
-      operationId: getTest
       parameters:
         - $ref: 'openapi.yaml#/components/parameters/myParam'
       responses:

__tests__/bundle/self-file-ref-normalization/snapshot.txt

@@ -2,16 +2,12 @@ openapi: 3.0.0
 info:
   title: Self-file ref normalization
   version: 1.0.0
-  license:
-    name: MIT
 servers:
   - url: http://example.com
 security: []
 paths:
   /test:
     get:
-      summary: Test
-      operationId: getTest
       parameters:
         - $ref: '#/components/parameters/myParam'
       responses:

packages/core/src/bundle.ts

@@ -339,17 +339,15 @@ function makeBundleVisitor(
           return;
         }
 
-        // Normalize explicit self-file refs to internal pointer
-        if (ctx.location.source.absoluteRef === resolved.location.source.absoluteRef) {
-          node.$ref = resolved.location.pointer;
-        }
-
         if (
           resolved.location.source === rootDocument.source &&
           resolved.location.source === ctx.location.source &&
           ctx.type.name !== 'scalar' &&
           !dereference
         ) {
+          // Normalize explicit self-file refs to internal pointer
+          node.$ref = resolved.location.pointer;
+
           return;
         }