metadata: fix updating graph metadata
^- md-config
?~ jon
[%group ~]
- ?: ?=(%s -.jon)
- [%graph p.jon]
?> ?=(%o -.jon)
+ ?: (~(has by p.jon) %graph)
+ =/ mod
+ (~(got by p.jon) %graph)
+ ?> ?=(%s -.mod)
+ [%graph p.mod]
=/ jin=json
(~(got by p.jon) %group)
?> ?=(%o -.jin)
