} else if(ServerGroupNameState.ID.equals(id)) {
final String groupName = buffer.toString().trim();
if(groupName.isEmpty()) {
throw new CommandFormatException("Empty group name at index " + ctx.getLocation());
}
<BUG>((SingleRolloutPlanGroup)group).setGroupName(groupName);
} else if(ServerGroupState.ID.equals(id)) {</BUG>
if(concurrent) {
header.addConcurrentGroup(group);
concurrent = false;

} else if(ServerGroupNameState.ID.equals(id)) {
final String groupName = buffer.toString().trim();
if(groupName.isEmpty()) {
throw new CommandFormatException("Empty group name at index " + ctx.getLocation());
}
group.setGroupName(groupName, lastChunkIndex);
} else if(ServerGroupState.ID.equals(id)) {
if(concurrent) {
header.addConcurrentGroup(group);
concurrent = false;
