Assertion failure in iproto_interact()

[Kostja Osipov]

#0 0x00000031b7430265 in raise () from /lib64/libc.so.6
(gdb) bt
#0 0x00000031b7430265 in raise () from /lib64/libc.so.6
#1 0x00000031b7431d10 in abort () from /lib64/libc.so.6
#2 0x000000000043822c in assert_fail ()
#3 0x00000000004366a7 in tbuf_split ()
#4 0x000000000043f9a6 in iproto_interact ()
#5 0x0000000000431296 in fiber_loop ()
#6 0x0000000000446d17 in coro_init () at /home/e.dmitriev/tmp/tarantool/third_party/coro/coro.c:95
#7 0x0000000000409800 in ceil@plt ()
#8 0x00000000bb84fcf6 in ?? ()
#9 0x00002aaaabc0cfdb in ?? ()
#10 0x0000000000000025 in ?? ()
#11 0x0000000000008000 in ?? ()
#12 0x000000001b51aac0 in ?? ()
#13 0x0000000000000000 in ?? ()

/home/e.dmitriev/tmp/tarantool/core/tbuf.m:103: tbuf_split: assertion at <= orig->len failed.
        - { frame: 0x2aab30176f18, caller: 0x2aab30176f40 }