Legend displays some selected properties inconsistently

[fridgepoet]

What happened:
Some weird behavior around the Legend: sometimes choosing "Temperature," for example, causes "Temperature" to just continue displaying on the legend, even if it is a duplicate.

Screen.Recording.2023-05-10.at.11.24.16.mov

What you expected to happen:
It should show the properties which were selected.

How to reproduce it (as minimally and precisely as possible):
See the above screen recording on https://play.grafana.org/d/TRA53ITVz/main-dashboard?orgId=1
Play around with the Selected Properties, removing them, adding them back -- you should see the the inconsistent behavior.
For example, selecting Mixer entity > Temperature + RPM Properties in the same query only displays Temperature twice on the panel. However if you choose RPM alone, Temperature still displays.

Environment:

• Grafana version: 9.5.2-cloud
• Plugin version:

[iwysiu]

Interesting, I tried repro-ing this on both play grafana and locally, and what I got was it just returning the data for the first property. Which is still a bug, but a slightly different one.

[taleena]

Working on a test environment to figure out where this bug lives.

[fridgepoet]

@taleena I've tried to reproduce on play.grafana.org and it's not quite what I described.
I've updated the description with a video recording of what I observed and you should be able to use https://play.grafana.org/d/TRA53ITVz/main-dashboard?orgId=1 to have a look.

[taleena]

Per TM team, seems this could be an issue with the times series panel, or in the way TM is sending the query in the backend and we should take a look there.

[katebrenner]

Grafana + Twinmaker team to collab on this