Chained template parameters can cause server error.

[kavics]

The following query causes a server error if the template parameters cannot be resolved. For example:
The query: "TypeIs:Task +CreationDate:<@@CurrentUser.Manager.CreationDate@@"
The result: "Unexpected RParen. Expected: STRING | NUMBER, (query: +(TypeIs:Task +CreationDate:<) +(InTree: /Root ) ) [Line: 1, Col: 30]"
Expected result: No error, no hit
See Docs2_Querying_Template_PropertyChain test in the TestForDocs project.

Maybe should be used something like this in the template replacer: -=#NotResolved#=-