Upload fails with error 422

[elyk]

Using JOSM 1558 I've tried combining two ways and I get an HTTP error 422 when trying to upload.

GET http://www.openstreetmap.org/api/capabilities... OK
Communications with http://www.openstreetmap.org/api established using protocol version 0.6
PUT http://www.openstreetmap.org/api/0.6/changeset/create... OK
POST http://www.openstreetmap.org/api/0.6/changeset/983166/upload... Unprocessable Entity
PUT http://www.openstreetmap.org/api/0.6/changeset/983166/close... OK

My guess is that the tiger:tlid tags from both got combined into a string longer than 255 chars, causing the upload to fail. But that's only my guess. See way 33725567 in the attached patch; the tiger:tlid tag is 273 chars long.

[elyk]

I just deleted the long tiger:tlid tag and the upload worked fine. Seems the long tag value was the problem.

[Gubaer]

Since r1693 max. attribute length of 255 is checked before uploading.