Auto-suggest bug

While working in the following query:

SELECT t.{cursor}
FROM table t

I'll get an auto-suggest box for the fields in table.
But when I insert a ) it inserts all columns.
This bug gives weird results when I want to type COUNT(t.id)
As far I can tell it only happens when typing no column (pressing ")" right after the dot) or when typing the first column in that table (the all column option stays selected)

You get the value inserted from the recently introduced "All columns" item. See issue #2975 for details and discussion.