[Koha] Patron import problem 3.22

[Elaine Bradtke]

We routinely import patron records (derived from our membership database)
and overwrite the old ones in order to update expiration dates, addresses,
etc.
I recently ran this process through our test site (running 3.22.06) and it
failed. The error message I got back was the records were not imported
because the userid was already in use or missing. I had chosen 'overwrite
matching records'

Oddly, the import process  worked fine in the production site
running 3.22.07

Is there a system preference I should check in the test site?
Maybe this is related to Bug 15840 - Import borrowers tool explodes if
userid already exists
​We match on cardnumber,  Is this the same as the userid? We don't have a
column in our csv file called userid.​

-- 
Elaine Bradtke
Data Wrangler
VWML
English Folk Dance and Song Society | http://www.efdss.org
Cecil Sharp House, 2 Regent's Park Road, London NW1 7AY
Tel    +44 (0) 20 7485 2206 (This number is for the English Folk Dance and
Song Society in London, England. If you wish to phone me personally, send
an e-mail first. I work off site)
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Charity Registered in England and Wales No. 305999
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"Writing about music is like dancing about architecture"
--Elvis Costello (Musician magazine No. 60 (October 1983), p. 52)