fdo#72774: Ensure that all the group fields are in cache upon file load.
fdo#72774: Ensure that all the group fields are in cache upon file load.

This resolves the originally reported issue in that bug (in Comment 1).

Change-Id: I6fb85cff1eafb78d784605aa08e7d992a1ac36e0

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core