Fix to make sure new vid's are created for node_revision records when updating a node. This had been well tested on the D6 version but in the conversion to the D7 version it looks like this was missed. This has been tested on a dataset of about 14 records.
It's strange that this has not been reported as a bug before. The code has been checked as closely as possible and hopefully this should not introduce any new issues.
Also, minor fix to remove an incorrect message from the taxonomy import tab.