custom component validation broken

[JKHeadley]

Hi! A while back I was working on a custom component to wrap some validate functionality and I managed to get it working (see #90)

However, I'm now trying to update my project to use the latest vue-cli starter template. The update has gone pretty smooth, however for some reason the formstate for the inputs in my custom component aren't being updated now. Any idea what change could have caused this?

I've: updated:

• vue: v2.5.16 -> 2.6.11
• vue-form: v4.5.2 -> v4.10.3

Other deps were updated as well, and I can post more details if needed.