TextOperationWithFilter unexpectedly empty

[niklas88]

On Wikidata the following query is unexpectedly empty:

PREFIX ql: <QLever-internal-function/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?astronautLabel ?time_in_space WHERE {
  ?astronaut wdt:P106 wd:Q11631 .
  ?astronaut rdfs:label ?astronautLabel .
  ?astronaut wdt:P2873 ?time_in_space .
  ?t ql:contains-entity ?astronaut .
  ?t ql:contains-word "walk* moon" .
  FILTER langMatches(lang(?astronautLabel), "en") .
}

Looking at the runtime information we see the following:

 │
 ├─ TextOperationWithFilter with  walk* moon
 │  result_size: 0 x 4
 │  columns: ?t, SCORE(?t), ?astronaut, ?time_in_space
 │  total_time: 19.00 ms
 │  operation_time: 19.00 ms
 │  cached: false
 │  ┬
 │  │
 │  ├─ Join on ?astronaut
 │  │  result_size: 542 x 2
 │  │  columns: ?astronaut, ?time_in_space
 │  │  total_time: 0.00 ms
 │  │  operation_time: 0.00 ms
 │  │  cached: false
 │  │  ┬
 │  │  │
 │  │  ├─ IndexScan ?astronaut <http://www.wikidata.org/prop/direct/P106> <http://www.wikidata.org/entity/Q11631>
 │  │  │  result_size: 879 x 1
 │  │  │  columns: ?astronaut
 │  │  │  total_time: 0.00 ms
 │  │  │  operation_time: 0.00 ms
 │  │  │  cached: true
 │  │  │    OriginalTime: 0.00 ms
 │  │  │
 │  │  ├─ IndexScan ?astronaut <http://www.wikidata.org/prop/direct/P2873> ?time_in_space
 │  │  │  result_size: 545 x 2
 │  │  │  columns: ?astronaut, ?time_in_space
 │  │  │  total_time: 0.00 ms
 │  │  │  operation_time: 0.00 ms
 │  │  │  cached: false

However looking at earlier commits there should be 30 astronauts co-occuring with "walk* moon" (the result of the TextOperationWithFilter). Bisecting the problem, it looks like this is caused by the IdTable changes. The commit b6c398e is still good, 1f65a85 is already broken.

Interestingly the Scientist query in #238 also uses TextOperationWithFilter and works (apart from that issue of course).