Bugfix, the destructor didn't unref m_bdrep

wb/lib/wb/src/wb_bdef.cpp

@@ -20,6 +20,12 @@ wb_bdef::wb_bdef(const wb_bdef& x) : wb_status(x.m_sts), m_bdrep(x.m_bdrep)
     m_bdrep->ref();
 }
 
+wb_bdef::~wb_bdef()
+{
+  if ( m_bdrep)
+    m_bdrep->unref();
+}
+
 wb_bdef& wb_bdef::operator=(const wb_bdef &x)
 {
   if ( x.m_bdrep)

wb/lib/wb/src/wb_bdef.h

@@ -24,7 +24,7 @@ public:
   wb_bdef(const wb_adef *a);
   wb_bdef(const wb_orep *o, pwr_eBix bix);
 
-  ~wb_bdef() {}; // Fix
+  ~wb_bdef();
 
   operator bool() const { return (m_bdrep != 0);}
   operator wb_bdrep*() const;