Of Cats and Wood Elves stuck open after freeing the slaves

Type: 

Bug

Severity: 

Minor

Game version: 

OpenMW

Concerns: 

TR_Mainland

Found in Version: 

Status: 

Item/Script Reference:

Identifier: 

TR_m4_S_Tharmadalion

Name: 

Tharmadalion

Description: 

I bought and freed the slave called Tharmadalion. After freeing him, exploring available topics, I started the "Of Cats and Wood Elves" quest, and, since the slave is gone, and the slaver doesn't want to hear anything about that, the quest is stuck open

From what I see, there are journal entries for freeing the slaves in TR_m4_Arv_SlaveMistake, which apparently finish the quest, but they are not used in the "go free" topic.