Downsampling option not contained in Thanos URL

[JensErat]

Thanos, Prometheus and Golang version used

Version	0.6.0
Revision	c70b80e
Branch	HEAD
BuildUser	circleci@090532e54e70
BuildDate	20190718-11:16:14
GoVersion	go1.12.5

What happened

When creating ad-hoc queries in Thanos UI, the URI contains all parameters required to reconstruct the queries. This is very helpful to send eg. a link to a co-worker to share an analysis, or to check from one Thanos environment to another by changing the URI.

Example partial URL:

/graph?g0.range_input=1h&g0.expr=count(kube_pod_info)&g0.tab=0

The URI misses the the auto scale down option, though, which has to be set up for all queries after opening the URI.

What you expected to happen

Downsampling option contained in the URI

How to reproduce it (as minimally and precisely as possible):

Change downsampling option, observe URI

Full logs to relevant components

Anything else we need to know