The golden buff from Sr. Tomb Diver is not being kept permanent with Persistent Poet. This happened with a fire-forged evoker being the far right minion receiving the golden and a poet next to it. This also happened with a persistent poet being the far right minion becoming golden in combat, and another non-golden poet next to it.
the bug is still here, i just had it with Greenskeeper+Poet+Kalcygos - greenskeeper was triggering a pirate but after combat its stats were unchanged