Author: geltmar
[Added to the original trac issue at 11.56am, Wednesday, 4th February 2009]

Did a few more tests. Sometimes you have addr:postcode saved with an object. You insert addr:housenumber and then addr:postcode is deleted?/not shown?
I inserted quite a few addresses yesterday. Housenumbers showed up in a renderer today. clicking on an object with a renderd housenumber in potlatch... shows NO housenumber of that object.
So it is possible, that my former description is wrong... maybe it is saved in the database, but not properly retrieved, to be edited in potlatch.

Author: PHerison
[Added to the original trac issue at 7.11pm, Wednesday, 4th March 2009]

I can confirm the problem.
I couldn't determin a realtion between entered address-tag and deleted address-tag. I seems to me, that a random address-tag is thrown away for a new one entered. Or sometimes no tag is deleted. It seems that the defect is only related to addr:*-Tags. Other tags of the node (amenity, shop aso.) won't be deleted.
Using JOSM works as expected.
Example: http://www.openstreetmap.org/browse/node/354923428/history
The error is permanent and can be reproduced everytime.

Author: Pouletic
[Added to the original trac issue at 4.53am, Thursday, 26th March 2009]

Second confirmation here. This was driving me batty today, so I'm glad to see I'm not imagining things. It's always an addr:* tag that gets lost-usually seems to be housenumber, but i think street was lost a few times as well.

Author: Richard
[Added to the original trac issue at 10.01am, Saturday, 9th May 2009]

Fixed (on next deploy) - it was an issue with the autocomplete menu. Thanks for spotting.