when clicking at a text placeholder, put the cursor at the start

Rather than at the end. There is still some flicker, because
SwEditWin::MouseButtonDown() selects it first too and puts the cursor
at the end, but I've wasted already way too much time and trying
to avoid that or the flicker.

Change-Id: Ib0f00f3f955e64427dba8dd1c6ae7123afc17b34

sw/source/ui/wrtsh/wrtsh2.cxx

@@ -257,7 +257,10 @@ void SwWrtShell::ClickToField( const SwField& rFld )
 
             }
 
-            Right( CRSR_SKIP_CHARS, sal_True, 1, sal_False );       // Feld selektieren
+            StartAllAction();
+            Right( CRSR_SKIP_CHARS, true, 0, false ); // Select the field.
+            NormalizePam();   // Cursor at the beginning of it.
+            EndAllAction();
 
             if( nSlotId )
             {