MergeDeep concatenates lists instead of replacing them #1452
Description
What happened
When mergingDeep Lists are concatenated instead of replacing the list at the key.
How to reproduce
Immutable.fromJS({
list: [1,2]
}).mergeDeep(Immutable.fromJS({
list: [1,2]
})).toJS()
returns {list: [1,2,1,2]}
expect {list: [1,2]}
mergeDeepWith is no help as Lists are skipped by the resolver as mentioned in #1420