fix: the pattern

Author: DmitryAnansky

packages/core/src/ref-utils.ts

@@ -53,8 +53,8 @@ export function escapePointerFragment<T extends string | number>(fragment: T): T
 function encodeURIFragmentIdentifier(fragment: string): string {
   return fragment
     .replace(/%/g, '%25')
-    .replace(/^/g, '%5E')
-    .replace(/|/g, '%7C')
+    .replace(/\^/g, '%5E')
+    .replace(/\|/g, '%7C')
     .replace(/\\\\/g, '%5C')
     .replace(/\\/g, '%22')
     .replace(/ /g, '%20');