Test MGC 10.0 GTID behaviour

[6:26:01 PM] Jan Lindström: Here is what needs to be tested:
[6:26:10 PM] Jan Lindström: 1) set up a galera cluster with 2 nodes
[6:26:20 PM] Jan Lindström: 2) insert data to node 1
[6:26:28 PM] Jan Lindström: 3) insert data to node 2
[6:26:49 PM] Jan Lindström: now see what kind of gtids are stored to binlogs on both nodes
[6:27:06 PM] Jan Lindström: in setup you should set server_id and domain_id on both nodes to lets say 1
[6:27:21 PM] Jan Lindström: 4) remove node 2 from cluster
[6:27:38 PM] Jan Lindström: 5) insert more data to node 2
[6:27:58 PM] Jan Lindström: 6) but node 2 back to cluster and see what happens at sst
[6:28:07 PM] Jan Lindström: 7) observer again gtids on binlogs
[6:28:20 PM] Jan Lindström: 8) remove node 2 from cluster
[6:28:25 PM] Jan Lindström: 9) insert data to node 1
[6:28:34 PM] Jan Lindström: 10) bring node2 back to cluster
[6:28:51 PM] Jan Lindström: 11) observer what happens at sst, and gtids on binlogs