Shortcut for "Recent documents"

Does anyone here know why, in version 4.4(.5.2) is the shortcut for
"Recent Documents" on the "File" menu "U"? It always (?) Used to be
"R". There doesn't appear to be any clash which would stop it being
"R" now, not in Writer at least.

Anyone?

Mark

It's been "U" for as long as I've been using LO (and OO before that).

Dave