Feature type customization can prevent correct <featurecaption> serialization

[prushforth]

The new feature type customization in GeoServer 2.21 allows flexible attribute output renaming, but if the renamed attribute contains a space, it results in default <featurecaption> of "Feature" even if a feature caption string has been appropriately set.

For example, if you rename the STATE_NAME attribute to "State Name" for output features:

and then you set the <featurecaption> string to contain a property placeholder that should serialize the renamed attribute:

it results in the default "Feature" string being used: