[solved] How to stop Phpstorm inserting curly braces in blade templates?

Hi,

I have an annoying issue with PhpStorm.  When editing blade templates (*.blade.php) if I type

<label for="selectStaffType" class=

PhpStorm will insert curly braces like so:

<label for="selectStaffType" class={}

This is incredibly annoying because I NEVER need curly braces around HTML attributes. How do I turn off this feature?
I have tried completely deleting my config folder, but the behaviour persists.