Berthold Stoeger 6790e07a4c cleanup: use begin/endResetModel in ExtraDataModel
As we do in most other models, use begin/endResetModel() to
reset the model. This is distinctly less errorprone than
the add/removeRows() version as we don't have to check for
empty ranges, etc.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-05-07 08:46:15 -07:00
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