Toad throws 'variables' window on basic code template with 'dual'

Having a bizarre glitch on Toad for Oracle, when I add a code template for
select | from dual
and ‘invoke’ it in editor, instead of the ‘normal’ behaviour (that would transform a ‘shortcut’ to the full template) I get a pop up ‘variables’ window prompting me to give a value for colon (":"), which I don’t have anywhere at all in the editor.
Other templates seem to work OK.

Checked on 2 machines - same thing.

Anyone else has this?

This has been fixed for 13.1 to be released in the fall.