Seems like legacy/trac#23693 caused the following coverity warning: ``` ** CID 1435130: Incorrect expression (COPY_PASTE_ERROR) /src/or/router.c: 153 in dup_onion_keys() ________________________________________________________________________________________________________ *** CID 1435130: Incorrect expression (COPY_PASTE_ERROR) /src/or/router.c: 153 in dup_onion_keys() 147 tor_assert(key); 148 tor_assert(last); 149 tor_mutex_acquire(key_lock); 150 if (onionkey) 151 *key = crypto_pk_copy_full(onionkey); 152 else >>> CID 1435130: Incorrect expression (COPY_PASTE_ERROR) >>> "last" in "*last = NULL" looks like a copy-paste error. 153 *last = NULL; 154 if (lastonionkey) 155 *last = crypto_pk_copy_full(lastonionkey); 156 else 157 *last = NULL; 158 tor_mutex_release(key_lock); ``` Perhaps this new `*last = NULL;` should have been `*key = NULL`.