QueryBuilderTest.FixedArrayInRes produces incorrect results with allow_lazy_fetch=true

[kurapov-peter]

Setting the default true value for CompilationOptions::allow_lazy_fetch makes QueryBuilderTest produce incorrect results two cases.
QueryBuilderTest.VarlenArrayInRes and QueryBuilderTest.FixedArrayInRes are affected.

[ RUN      ] QueryBuilderTest.FixedArrayInRes
/localdisk/pakurapo/sources/hdk/omniscidb/Tests/ArrowTestHelpers.h:189: Failure
Value of: chunk->IsNull(j)
  Actual: false
Expected: true
/localdisk/pakurapo/sources/hdk/omniscidb/Tests/ArrowTestHelpers.h:189: Failure
Value of: chunk->IsNull(j)
  Actual: false
Expected: true
/localdisk/pakurapo/sources/hdk/omniscidb/Tests/ArrowTestHelpers.h:189: Failure
Value of: chunk->IsNull(j)
  Actual: false
Expected: true
/localdisk/pakurapo/sources/hdk/omniscidb/Tests/ArrowTestHelpers.h:189: Failure
Value of: chunk->IsNull(j)
  Actual: false
Expected: true