How to preserve the condition tree order when saving it

[Saragani]

When calling Utils.getTree(immutableTree), the order of the rules and groups might not get preserved.
It appears that the order is being determined by the IDs of the children.

For example, I create a group with 1 rules, where the first rule id is: 88bba8ba-cdef-4012-b456-717fa7c50478, and the second rule id is: 889a989a-4567-489a-bcde-f17fa7d96b7b, then the JSON tree that I'm getting does not preserve the correct order of the items (I'm not sure it it's a bug or not, since JSON does not guarantee the order of its items).

The JsonTree is being send to the backend server, and saved into a DB, and later on loaded, and in this case, the order of the rules is "reversed" due to the order of the ids.

I've noticed that if I call JSON.stringify on the JsonTree, then the result string is somehow with the correct order (I don't know if it's by accident, or by design, so I can't count on it).

What is the best way of storing the conditions tree on the server and preserving the order of the children of groups and sub groups.

Thanks.

[ukrbublik]

Going to fix this with #672 - children1 will be array instead of object

[Saragani]

Thanks