"Log Download" repeats the list of logs many times

MissionPlanner 1.2.93, APM V2.76
With 190 logs present in the APM
1. Terminal->Connect
2. Enter "logs" in the terminal

Now a list of all logs is received and displayed.
1. Click "Log Download"

The list from 2 is now repeated up to 12 times, the more logs there are the more times the same list is repeated.

Reproduce the issue in Mission Planner by connecting, entering "logs" in the terminal, and clicking "Log Download" with many logs present. Trace the log-list handling from those entry points and identify why the received list is displayed repeatedly. Done means the log list appears once regardless of the number of logs, with the reproduction steps no longer showing duplicates.

Written by the indexing model from the issue text.