Script Editor window closing inconveniently

[RM]

When a script editor window opens when there is a script execution error I would expect it to REMAIN OPEN when
the BLUE SQUARE is clicked to acknowledge the fact, so that the programmer can edit the script.

Instead of this, on clicking the blue square the script editor window closes, meaning that the programmer has
to open the window again to modify the script.

BUG  17076

Richmond.