Segfaults in libc-2.19 w/ 2.9.2

Hi fellow Nano users,

I love Nano and I am very much excited about several recently added 
features. My main servers run on Debian 8, so at least since Nano 2.7 
I am compiling it from source.

Only with 2.9.2, I seem to face segfaults more frequently, yet not 
very often. Also not often enough to see a pattern. The 2 most recent 
segfaults

   Jan 15 22:19:49 wiener kernel: [164886.887031] nano[20676]: segfault
   at ea3fff ip 00007fbe7a4f6ff1 sp 00007fff0ec73948 error 4 in
   libc-2.19.so[7fbe7a3be000+1a1000]

   Jan 11 22:58:43 wiener kernel: [9580504.552309] nano[22940]:
   segfault at 15d1fff ip 00007f599578bfdd sp 00007ffe98d64e58 error 4
   in libc-2.19.so[7f5995653000+1a1000]

occurred while typing (no special operations) in 7K large file using 
syntax highlighting for Markdown, though the line I was typing just 
now had no highlighting.

What can I do to track this down?

BTW, there is no auto save feature, is there?

-- 
-- Andreas

     :-)