CN: Bug - returning struct expression causes a leftover resource

[dc-mak]

14:48 ➜  cerberus git:(main) cat tmp.c

#include <stddef.h>

struct MapNode {
    int dummy;
};

struct Map {
    struct MapNode* root;
};

struct Map map_empty()
{
  return (struct Map){ .root = NULL };
}

14:48 ➜  cerberus git:(main) cn verify tmp.c
[1/1]: map_empty -- fail
tmp.c:13:3: error: Left-over unused resource 'Owned<struct MapNode*>(&a_511->root)(NULL)'
  return (struct Map){ .root = NULL };
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
State file: file:///tmp/state__tmp.c__map_empty.html
14:49 ➜  cerberus git:(main) cn --version
git-0cd00b150 [2024-10-08 08:16:18 +0100]

[dc-mak]

This however works fine.

   struct Map result = { .root = NULL };
   return result;