Silly little bug and very easy to get around, ive noticed it a few times in v3 but only got around to saying now
Specific scenario is select a DB and before you select a table just run a complex SQL stmnt by clicking on the SQL tab
Eg (dont slate me on this I have a 300 line version and this is the simlist form I could think of)
SELECT id FROM (SELECT id FROM bundles ) tmp
The paging also goes a bit whack but if you now click on export etc (at the bottom) of the page your just taken back to the SQL box.
HTH
Simon.
Fixed in subversion, thanks for reporting.