>This is code:
<snip>
>What's wrong?

Hi Sergey,

It's a bug, IMO. No command should change workarea randomly. Here's a simpler repro.

CLEAR
CLOSE DATA
CREATE CURSOR Test (nnn I)

SELECT Test
? SELECT()     && 1 - correct
SELECT * FROM Test ;
	JOIN (SELECT nnn FROM Test ) dt1 ;
	ON Test.nnn = dt1.nnn ;
	INTO ARRAY myarray
? SELECT()     && 5 - Incorrect, shold be 1