Compilation fails after 15.0 update

After I updated to 15.0 on a very old MFC codebase on Windows I get a couple of these errors:

error : extra text after expected end of number

They are all in Message Maps for ON_NOTIFY_REFLECT or ON_NOTIFY_REFLECT_EX.

	ON_NOTIFY_REFLECT_EX(NM_KILLFOCUS, OnKillfocus)
	ON_NOTIFY_REFLECT_EX(NM_SETFOCUS, OnSetfocus)
	ON_NOTIFY_REFLECT_EX(LVN_BEGINLABELEDIT, OnBeginlabeledit)
	ON_NOTIFY_REFLECT_EX(LVN_ENDLABELEDIT, OnEndlabeledit)

BEGIN_MESSAGE_MAP(CmM4_Footnotes_ExpandedTree, CmM4_TreeCtrl)
	//{{AFX_MSG_MAP(CmM4_Footnotes_ExpandedTree)
	ON_WM_CREATE()
	//}}AFX_MSG_MAP
	ON_NOTIFY_REFLECT_EX(LVN_INSERTITEM,OnUpdateTreeContents)
	ON_NOTIFY_REFLECT_EX(LVN_DELETEITEM,OnUpdateTreeContents)
	ON_NOTIFY_REFLECT_EX(LVN_DELETEALLITEMS,OnUpdateTreeContents)
END_MESSAGE_MAP()

All that is code that has been unchanged for ages, I have to assume there is some compiler bug at work; anybody can confirm that or maybe have a suggestion for a workaround?