Describe the problem

If I zoom into a timerange on the chart, change to other metric dashboard and return back to original one, the charts are gone. Other dashboards show fine and I can switch between them.
To restore charts I can pick a new time range from time dropdown.

To Reproduce

What did you do? Describe in your own words.

If possible, provide steps to reproduce the behavior:

1. take any cluster with metrics (like cockroach demo) that run for some time
2. go to metrics
3. switch to past 1 h time range
   
4. use mouse drag to select a part of time range on the chart
   
5. switch to hardware dashboard
   
6. switch back to overview
   

Expected behavior
Charts to stay visible.

Environment:

• CockroachDB version 21.2 master and prior (ff7f80f)
• Server OS: MacOS
• Client app Chrome, Safari

Additional context
Makes it hard to correlate historical charts between metric dashboards.
Outside of production clusters, we use dashboard to view exported metrics and that means we always look on detailed metrics in the past.

Epic CRDB-8038