I think I just found out the exact case when the URL is not shown in
the bar: when a link form the bookmarks list is chosen when the URL
bar is active and "does not have any url already showing in it".
As a test, start k-meleon. Go to the url bar and delete whatever text
there is. Now after u're done deleting the text, while the url bar is
still active select a link from the bookmarks. And the page will load
but the url not show on the bar.
P.S. I'm reporting for 0.9beta2 here. I apologize for not noting that
on the last email.