Krzysztof Kotlarek 6e403f20ee
FIX: Don't error when the empty current value in dif (#8406)
If current value is nil we should use `&.` combined with `dig` to protect diff from erroring

It is happening when for example theme is delete (new value is empty)
2019-11-26 09:17:14 +11:00
..
2019-11-25 14:32:19 +02:00