Re #27586 add release notes

docs/source/release/v4.3.0/mantidworkbench.rst

@@ -25,6 +25,7 @@ Improvements
    :align: left
 
 - You can now save Table Workspaces to Ascii using the `SaveAscii <algm-SaveAscii>` algorithm, and the Ascii Save option on the workspaces toolbox.
+- Fit functions can now be put into nested categories and into multiple categories.
 - Normalization options have been added to 2d plots and sliceviewer.
 - The images tab in figure options no longer forces the max value to be greater than the min value.
 

qt/widgets/common/inc/MantidQtWidgets/Common/FitPropertyBrowser.h

@@ -21,8 +21,8 @@
 #include "MantidAPI/IFunction.h"
 #include "MantidAPI/IPeakFunction.h"
 #include "MantidAPI/MatrixWorkspace_fwd.h"
-#include "MantidQtWidgets/Common/SelectFunctionDialog.h"
 #include "MantidQtWidgets/Common/IWorkspaceFitControl.h"
+#include "MantidQtWidgets/Common/SelectFunctionDialog.h"
 #include "MantidQtWidgets/Common/WorkspaceObserver.h"
 
 /* Forward declarations */