Follow on from an "optional" job is messy

[dagewa]

Let's say after dials.symmetry I want to run dials.two_theta_refine, but this is an "optional" job (see #74). I can click the "..?" optional button and select the two_theta_refine job and run it. That works fine. But now I want to run a dials.scale job afterwards. But it appears I am still stuck in the "optional" menu

I can select scale from the optional list, but then I don't get the simple and advanced parameters UIs

There's a workaround, which is to click away from the "optional" scale node, at which point it magically becomes a normal scale node

But this is non-obvious. The user should have got the usual scale input UIs as soon as they selected a scale job