titleMap is ignored in array of string enums (dropdowns)

[fkostadinov]

In the following JSON Form, titleMap values are simply ignored.

{
"schema": {
"friends": {
"type": "array",
"items": {
"type": "string",
"title": "foo",
"enum": ["one", "two", "three"]
}
}
},
"form": [
{
"key": "friends",
"titleMap": {"one": "foo", "two": "bar", "three": "baz"}
}
]
}
This renders an array of dropdowns, each returning a string value. The titleMap argument however is ignored, the dropdowns all contain "one", "two" or "three" instead of "foo", "bar" and "baz".

Help is appreciated, thanks.