diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts index e6d21588db3..363b21d64b1 100644 --- a/src/compiler/checker.ts +++ b/src/compiler/checker.ts @@ -11638,8 +11638,11 @@ namespace ts { if (propertiesArray.length > 0) { spread = getSpreadType(spread, createObjectLiteralType(), /*isFromObjectLiteral*/ true); } - spread.flags |= propagatedFlags; - spread.symbol = node.symbol; + if (spread.flags & TypeFlags.Object) { + // only set the symbol and flags if this is a (fresh) object type + spread.flags |= propagatedFlags; + spread.symbol = node.symbol; + } return spread; }