Default-macro loading not working for python IOCs

[Tom-Willemsen]

Might affect: PixelMan, REFL, BGRSCRPT, LSICORR, Forwarder

[FreddieAkeroyd]

Is the plan to just update release in place with necessary changes?

[Tom-Willemsen]

When it was just one small change I favoured updating in place, but now we've made a variety of small changes in various places I feel a patch release might be cleaner?

Let's see what else the system tests show - we can build the patch release over the weekend if need be.