Blank legend shows poorly in table

[mykllterry]

Describe the bug
If I leave the legend field blank in a query then the table is displayed with multiple rows showing what could be query related parameters and such.

If the legend isn't formatted correctly then the table displays a column with undefined values and duplicate matches error.

Normal
Query Legend: Petasos Service Discovery | {{region}}
Row Name Pattern: 0
Column Name Pattern: 1

Empty
Query Legend:
Row Name Pattern: 0
Column Name Pattern: 1

Incomplete
Query Legend: Petasos Service Discovery
Row Name Pattern: 0
Column Name Pattern: 1

Screenshots

Version Details:

• Grafana version : 6.2.5
• Plugin version : 1.3 (from master)
• Prometheus database.

Additional context
The changes from v1.0 make is easier to format font size and such. Might be expected behavior. Maybe a candidate for a troubleshooting section in documentation.