prefab mode json error workaround?

Hi, I recently encountered an issue similar to the one reported here:
https://issuetracker.unity3d.com/is...ment-is-empty-dot-error-when-opening-a-prefab

Now, I notice it's marked fixed in 2019.1, but does that mean it'll persist in all the stable and LTS versions of 2018? That seems... weird. I mean, I'm looking at prefabs being completely broken and non-editable if I encounter this bug and no way to recover from it?

On the other hand, I was wondering if more details could be shared about the issue, how to avoid it, or how to work around it if it occurs.

 

Thanks! That's good to hear. Is there any way for me to keep tabs on the issue and find out which version of 2018.3 the fix will be in?