public final boolean isOverridable(CompoundName name, Map<String, String> context) {
        return unoverridables.get(name, context) == null;
    }
Returns whether or not the given field name can be overridden at runtime.
Attempts to override values which cannot be overridden will not fail but be ignored.
Default: true.

@param name the name of the field to check
@param context the context in which to check, or null if none
container-search/src/main/java/com/yahoo/search/query/profile/compiled/CompiledQueryProfile.java