For those of us who live in areas that are pretty sparse on mappers, I don't see this being a problem. Speaking from personal experience, just seeing an undo button on your user history would prevent a lot of conflicts from people trying to "fix" their mistakes.<br>
<br>Take a look at the history for this stretch of I-75 near the TN/GA border, since I was unaware of the undo process, I ended up spending 6+ hours redrawing I-75 (admittedly the work needed to be done to fix TIGER, but still) because of a single-keystroke mistake that the CTRL-Z undo in Potlatch didn't allow me to undo.<br>
<br><a href="http://www.openstreetmap.org/?minlon=-85.6267052&minlat=34.8502047&maxlon=-84.2608284&maxlat=35.0374212&box=yes">http://www.openstreetmap.org/?minlon=-85.6267052&minlat=34.8502047&maxlon=-84.2608284&maxlat=35.0374212&box=yes</a> <br>
<br>Chris<br><br><div class="gmail_quote">On Tue, Jul 14, 2009 at 12:39 PM, <span dir="ltr"><<a href="mailto:talk-request@openstreetmap.org">talk-request@openstreetmap.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div id=":g" class="ii gt">As soon as someone has edited anything in the changeset after the version in the changeset, then you have a conflict and can't do a simple one click revert. OpenStreetMap data is a *lot* more complex than the Wikipedia when it comes to reverting due to the referential integrity. That is key to there not being a simple revert system for whole changesets.<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
If the edit can't be reverted because of conflicts, simply show a:<br>
"can't revert because of editing conflicts" message.<br>
<br>
I guess this would already solve 99.99% of all cases.<br>
</blockquote>
<br>
Only in the seconds/hours after the edit was made (depending on how active the mappers in the area are). The further back in time you go the more conflicts you get and the harder it is.<br>
<br>
Shaun</div></blockquote></div><br>