Only 1 block of linked_dashboard is allowed

[henbeibi]

According to the official document, linked_dashboard should be a block list, however, it's reporting

╷
│ Error: Too many linked_dashboard blocks
│ 
│   on dashboards.tf line 338, in resource "sumologic_dashboard" "test_dashboard2":
│  338:         content {
│ 
│ No more than 1 "linked_dashboard" blocks are allowed
╵

Sample Code block

      linked_dashboard {
        id = sumologic_dashboard.test_dashboard1["key1"].id
      }
      linked_dashboard {
        id = sumologic_dashboard.test_dashboard1["key2"].id
      }

[dlinsumo]

Internal JIRA SUMO-204910