fixes #22613; Default value does not work with object's discriminator (#22614)

* fixes #22613; Default value does not work with object's discriminator

fixes #22613

* merge branches

* add a test case

* fixes status

* remove outdated comments

* move collectBranchFields into the global scope

tests/objects/tobject_default_value.nim

@@ -377,7 +377,7 @@ template main {.dirty.} =
         Red, Blue, Yellow
   
     type
-      ObjectVarint3 = object # fixme it doesn't work with static
+      ObjectVarint3 = object
         case kind: Color = Blue
         of Red:
           data1: int = 10
@@ -703,5 +703,20 @@ template main {.dirty.} =
     var foo = new Container
     doAssert int(foo.thing[0].x) == 1
 
+  block: # bug #22613
+    type
+      K = enum
+        A = "a"
+        B = "b"
+      T = object
+        case kind: K = B
+        of A:
+          a: int
+        of B:
+          b: float
+
+    doAssert T().kind == B
+
+
 static: main()
 main()