<div dir="ltr"><div class="gmail_extra">So what about keys like this:</div><div class="gmail_extra"><a href="https://www.openstreetmap.org/relation/4223325/history">https://www.openstreetmap.org/relation/4223325/history</a><br></div><div class="gmail_extra">With non-English components after the colon.  Should these be encouraged? Discouraged?<br></div><div class="gmail_extra"><br></div><div class="gmail_extra"><br></div></div>