An informal list of FIXMEs which don't warrant full tickets...

This is not *intended* to be a list of long-lived fixme's, but more of a scratchpad for things which come up spontaneously and shouldn't be forgotten.

Snippet from `f-sanity`:
- List is currently empty :).

```
  rid = fsl_db_g_id(db, -1, "select fsl_sym2rid('root:7bfbc3dba6c65')");
  assert(1==rid)
    /*BUG (2020-02-25): it's only RID 1 when fossil rebuilds, not when
      f-parseparty --crosslink relinks everything.  Ergo: we have a
      crosslink bug in libf. */;
  assert(!fsl_rid_is_leaf(f, rid));
```