Reporter: dantje
[Submitted to the original trac issue database at 2.36pm, Saturday, 12th July 2008]

I suppose this issue can be split into multiple problems, but let me describe the whole sequence of what I did to break it. I made a screenshot at every step.

1. Create two simple ways in OSM that look like Screenshot 1 and upload them. The restart, and download that very same data.

2. Select the node where both ways meet and delete it

3. Note how the selection in the way still shows the node, by now it can't be selected anymore. This is a bug by itself.

4. Now make a new connection between the two ways.

5. And join the two segments of the upper way

6. Upload everything (There is no join or update command).

7. We get a "Precondition failed" for the first node we deleted

8. Try to upload the remaining "REMOVE" again

9. Again the server responds with an error

10. Now do undo to the beginning of the history. Now both ways show up, the old one and the new one.

11. Redo to the end of the history again and go to "File/New"

At this point my svn build segfaults (see backtrace.txt) when
a base class MapLayer destructor tries to delete its private
data of an UploadedDataLayer. In the backtrace I set a
breakpoint on this destructor and stepped thru.

12. The aftermath of the sequence on the server. The ways are not connected and the original connecting node is still there.