[core] Fix bug causing last stat value being ignored.
[core] Fix bug causing last stat value being ignored.

ocelot-inc/tarantool,nvoron23/tarantool,Sannis/tarantool,dkorolev/tarantool,guard163/tarantool,ocelot-inc/tarantool,nvoron23/tarantool,dkorolev/tarantool,rtsisyk/tarantool,Sannis/tarantool,guard163/tarantool,Sannis/tarantool,Sannis/tarantool,rtsisyk/tarantool,vasilenkomike/tarantool,mejedi/tarantool,KlonD90/tarantool,condor-the-bird/tarantool,dkorolev/tarantool,condor-the-bird/tarantool,rtsisyk/tarantool,Sannis/tarantool,nvoron23/tarantool,vasilenkomike/tarantool,vasilenkomike/tarantool,nvoron23/tarantool,mejedi/tarantool,dkorolev/tarantool,ocelot-inc/tarantool,mejedi/tarantool,mejedi/tarantool,guard163/tarantool,KlonD90/tarantool,vasilenkomike/tarantool,condor-the-bird/tarantool,condor-the-bird/tarantool,guard163/tarantool,condor-the-bird/tarantool,rtsisyk/tarantool,dkorolev/tarantool,guard163/tarantool,KlonD90/tarantool,KlonD90/tarantool,vasilenkomike/tarantool,KlonD90/tarantool,ocelot-inc/tarantool,nvoron23/tarantool,nvoron23/tarantool