...(ever since c5bcf0e5 "convert sw pos/size
page to .ui"), leading to out-of-bounds reads, but which should be harmless, as
all they could do is add bad StringIds inot aFrames, but the only use of those
IDs in SvxSwFramePosString::GetString (svx/source/dialog/swframeposstrings.cxx)
guards against bad IDs.

Change-Id: I7a50230c12bcf8a197f787201442c503fe5974e7