In commit 86d9622360, the `pcg_subtype`
was removed from the inserted values.
In commit a85dfaf71e, values associated
with this field were removed. However, at least two lines in the
PCG99-BASE accounting accounts still had that field values.
This led to errors when importing the PCG99-BASE accounts. This patch
fixes the problem and the accounts can be imported successfully.
9b1dbf8d2a