Only the last line is read when sending multiple lines to Grafana live channels

[Nohac]

What happened:
When sending multiple lines (delimited by \n) to Grafana live, only the last line is being parsed.

What you expected to happen:
I expect all lines to be parsed by Grafana and visible in my dashboard.

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

curl -X POST https://grafana/api/live/push/service \
   -H "Authorization: Bearer token" \
   -d 'service_log,host=host-name context="service",level="info",log="line 1",timestamp="2022-01-06 16:30:13:935" 1641483013983311800
service_log,host=host-name context="service",level="info",log="line 2",timestamp="2022-01-06 16:30:13:935" 1641483013983298200
service_log,host=host-name context="service",level="info",log="line 3",timestamp="2022-01-06 16:30:13:933" 1641483013983288800
service_log,host=host-name context="service",level="info",log="line 4",timestamp="2022-01-06 16:30:13:930" 1641483013983266900
service_log,host=host-name context="service",level="info",log="line 5",timestamp="2022-01-06 16:30:13:929" 1641483013983258100'

Environment:

• Grafana version: Grafana v8.2.2 (6232fe0)
• Data source type & version: Grafana live
• OS Grafana is installed on: Google cloud run / Docker

[txjmb]

Confirmed in our test.