Host migration after hostage rescue causes unhackable lockdown

[rux616]

I was playing an alert tonight and had the ever-so-fun experience of a host migration.  When the migration occurred, the hostage had been rescued and we were in the process of moving to the extraction point, with the first alarm level having been triggered.  Post-migration, the doors locked and hacking a nearby console didn't fix the issue.  I wasn't carrying Liset air support so I don't know if that will bypass the bug.

The tileset was the Grineer Shipyard, but I've also seen this happen (under the same circumstances) in the Corpus Ship tileset.