Steps to replicate the issue:
pwb archivebot -simulate user:miszaBot/config -lang:test -page:User_talk:DPL_bot
What happens?:
The bot loops infinitivly whil trying to find an archive page which is not full
Software version (skip for WMF-hosted wikis like Wikipedia):
Pywikibot 6.0.1+ but I guess also older releases are affected. Tested 6.0.1, 7.0.0, 7.4.0, 7.6.0