I had the same problem, it was fixed by adding "if_match_bug 1" to /etc/davfs2.conf. I think the reason is that in webdav 1.4 the default has changed.
I had the same problem, it was fixed by adding "if_match_bug 1" to /etc/davfs2.conf. I think the reason is that in webdav 1.4 the default has changed.