Cache mode uncached needs baseNodeName for URL genegation

[zaveryukha]

Description

If I use cache mode 'uncached' URL doesn't get generated.

Steps to Reproduce

root = Neos.Fusion:Value {
  value = Neos.Neos:NodeUri {
    node = ${site}
  }
  @cache {
    mode = 'uncached'
      context {
        1 = 'site'
      }
   }
}

Expected behavior

In output should be current url for the node.

Actual behavior

Empty output.

Workaround

root = Neos.Fusion:Value {
  value = Neos.Neos:NodeUri {
    node = ${site}
    baseNodeName = 'site'
  }
  @cache {
    mode = 'uncached'
    context {
        1 = 'site'
    }
  }
}

[kitsunet]

This happens because internally NodeUri relies on a context value "documentNode" being a node, which is used regardless if the given "node" is actually a node or just a path. Technically if "node" is a node instance we shouldn't need another one for linking. the workaround is to set the context variable name baseNodeName. This seems all like an outdated concept. We should just accept node or nodepath + baseNode (as a value directly).