Strange <br> behaviour in Safari 5.0.2 when paragraphize is set to false

Hello,
I encounter a strange problem: I set paragrahpize to false in order to only get
tags for line-breaks. I don't want paragraphs.
This works fine in firefox, but safari still sticks to a

...

I made a quick workaround in MooEditable.js inserting the shift-enter code twice, adding the following
code after line 500:

            if (Browser.Engine.webkit){
                /* Force inserting a br tag */
                var s = this.selection;
                var r = s.getRange();

                // Insert BR element
                var br = this.doc.createElement('br');
                r.insertNode(br);

                // Place caret after BR
                r.setStartAfter(br);
                r.setEndAfter(br);
                s.setRange(r);

                // Could not place caret after BR then insert an nbsp entity and move the caret
                if (s.getSelection().focusNode == br.previousSibling){
                    var nbsp = this.doc.createTextNode('\u00a0');
                    var p = br.parentNode;
                    var ns = br.nextSibling;
                    (ns) ? p.insertBefore(nbsp, ns) : p.appendChild(nbsp);
                    s.selectNode(nbsp);
                    s.collapse(1);
                }

                // Scroll to new position, scrollIntoView can't be used due to bug: http://bugs.webkit.org/show_bug.cgi?id=16117
                this.win.scrollTo(0, Element.getOffsets(s.getRange().startContainer).y);
                e.preventDefault();
            }