Ticket #3016: Segfault while entering into extfs archive

Current master (4.8.8-49-g6b64835) segfaults while entering into any extfs archive (zip, rar, etc).
Bad commit is 2640b21bb9700aa51a70f35f9e10732c82a7366f.

Signed-off-by: Slava Zanko <slavazanko@gmail.com>
Merge branch '3016_extfs_segfault'

* 3016_extfs_segfault:
  Ticket #3016: Segfault while entering into extfs archive