Merge pull request #5099 from yglukhov/workaround-5098

Workaround for #5098

lib/pure/collections/tableimpl.nim

@@ -116,16 +116,15 @@ template hasKeyOrPutImpl(enlarge) {.dirty.} =
     maybeRehashPutImpl(enlarge)
   else: result = true
 
-proc default[T](t: typedesc[T]): T {.inline.} = discard
+template default[T](t: typedesc[T]): T =
+  var v: T
+  v
 
 template delImpl() {.dirty.} =
   var hc: Hash
   var i = rawGet(t, key, hc)
   let msk = maxHash(t)
   if i >= 0:
-    t.data[i].hcode = 0
-    t.data[i].key = default(type(t.data[i].key))
-    t.data[i].val = default(type(t.data[i].val))
     dec(t.counter)
     block outer:
       while true:         # KnuthV3 Algo6.4R adapted for i=i+1 instead of i=i-1