Fix infinite loop

Resolves #2468
TypeStrong · Jan 1, 2024 · 914f9bb · 914f9bb
1 parent 3e2240c
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Unreleased
 
+### Bug Fixes
+
+-   Fixed infinite loop caused by a fix for some complicated union/intersection types, #2468.
+
 ## v0.25.5 (2024-01-01)
 
 ## Features

diff --git a/src/lib/converter/types.ts b/src/lib/converter/types.ts
@@ -135,10 +135,12 @@ export function convertType(
     // TS 4.2 added this to enable better tracking of type aliases.
     // We need to check it here, not just in the union checker, because typeToTypeNode
     // will use the origin when serializing
+    // aliasSymbol check is important - #2468
     if (
         typeOrNode.isUnion() &&
         typeOrNode.origin &&
-        !typeOrNode.origin.isUnion()
+        !typeOrNode.origin.isUnion() &&
+        !typeOrNode.aliasSymbol
     ) {
         return convertType(context, typeOrNode.origin);
     }