CID 1444641: REVERSE_INULL in test_hs_cache.c
Just reported today.
```
** CID 1444641: Null pointer dereferences (REVERSE_INULL)
/src/test/test_hs_cache.c: 265 in helper_fetch_desc_from_hsdir()
259 &received_desc, &body_used, HS_DESC_MAX_LEN, 0);
260 tor_free(headers);
261 }
262
263 done:
264 tor_free(hsdir_query_str);
>>> CID 1444641: Null pointer dereferences (REVERSE_INULL)
>>> Null-checking "conn" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
265 if (conn)
266 connection_free_minimal(TO_CONN(conn));
267
268 return received_desc;
269 }
270
```
issue