fix mem leak in docking code

git-svn-id: trunk@14496 -

lcl/ldocktree.pas

@@ -190,6 +190,8 @@ type
   { TLazDockSplitter }
 
   TLazDockSplitter = class(TCustomSplitter)
+  public
+    constructor Create(AOwner: TComponent); override;
   end;
   
   
@@ -3070,6 +3072,14 @@ begin
     Result := doNoOrient;
 end;
 
+{ TLazDockSplitter }
+
+constructor TLazDockSplitter.Create(AOwner: TComponent);
+begin
+  inherited Create(AOwner);
+  MinSize := 1;
+end;
+
 initialization
   DefaultDockTreeClass := TLazDockTree;
 {$I lcl_dock_images.lrs}