Aggregate index: superfluous warning "Full-text index without plan"

The aggregate index (used for Lucene fulltext index of type compatVersion 1) logs a warning "Full-text index without plan" for the following query:

select * from [nt:base] where contains(*, 'abc OR xyz') 

In the past, this used to be unexpected, but now as we have compatVersion 2 indexes, it is no longer a problem.

I will change the log message to "debug".