Geomap: Text label of marker layer not showing up when there are multiple queries

### What happened? In my geomap panel, I have two queries for a JSON datasource with the Infinity plugin. One returns only one coordinate and the other returns coordinates in my database that are nearby that coordinate. Each coordinate has a name, like "Building 1" and "Building 2" etc. I want to display this name along with the marker on the map using the Text Label field. Using the "Fixed" option, I can add text labels perfectly. But, if I use the "Field" option with a field matching the correct query, say a building_name field, no text appears for either query. <img width="231" height="814" alt="Image" src="https://github.com/user-attachments/assets/075055c9-b7bf-4b51-a677-412dc8b206a7" /> ### What did you expect to happen? I expected the lookupcode field's value to be displayed as text for each building on the map. ### Did this work before? Not to my knowledge ### How do we reproduce it? 1. Create two JSON datasources with the Infinity plugin containing lat/long coords and some text field. 2. Query both datasources in a geomap panel. 3. Create a map layer for each datasource. You can set the markers to be different colors to differentiate easily (optional) 4. Choose source "Field" and choose your text field for the query for that layer in the Text Label section of that layer. ### Is the bug inside a dashboard panel? | Key | Value | |--|--| | Panel | geomap @ 12.1.0 | | Grafana | Grafana v12.1.0 (ccd7b6ce7e) // Open Source | <details><summary>Panel debug snapshot dashboard</summary> ```json { "panels": [ { "id": 2, "type": "geomap", "title": "Reproduced with embedded data", "description": "Data from SIS", "gridPos": { "h": 13, "w": 15, "x": 0, "y": 0 }, "fieldConfig": { "defaults": { "custom": { "hideFrom": { "tooltip": false, "viz": false, "legend": false } }, "mappings": [], …