Fix reset labels for dynamic grouped labels

Another cases where the code is expecting all labels to be unique on
name.

Closes sundeck-io#402

bootstrap/004_labels.sql

@@ -307,7 +307,13 @@ LANGUAGE SQL
 EXECUTE AS OWNER
 AS
 $$
-    insert into internal.labels ("NAME", "GROUP_NAME", "GROUP_RANK", "LABEL_CREATED_AT", "CONDITION", "LABEL_MODIFIED_AT", "IS_DYNAMIC") select name, group_name, group_rank, label_created_at, condition, label_modified_at, IS_DYNAMIC from internal.predefined_labels where name not in (select name from internal.labels);
+    insert into internal.labels ("NAME", "GROUP_NAME", "GROUP_RANK", "LABEL_CREATED_AT", "CONDITION", "LABEL_MODIFIED_AT", "IS_DYNAMIC")
+        select name, group_name, group_rank, label_created_at, condition, label_modified_at, IS_DYNAMIC from internal.predefined_labels
+        where not is_dynamic and name not in (select name from internal.labels);
+    -- dynamic labels are unique by group_name not name
+    insert into internal.labels ("NAME", "GROUP_NAME", "GROUP_RANK", "LABEL_CREATED_AT", "CONDITION", "LABEL_MODIFIED_AT", "IS_DYNAMIC")
+        select name, group_name, group_rank, label_created_at, condition, label_modified_at, IS_DYNAMIC from internal.predefined_labels
+        where is_dynamic and group_name not in (select group_name from internal.labels where is_dynamic);
 $$;
 
 CREATE OR REPLACE PROCEDURE INTERNAL.MIGRATE_PREDEFINED_LABELS(gap_in_seconds NUMBER)