BF (1899283) - Numeric fields allow copy strings

https://sourceforge.net/tracker/index.php?func=detail&aid=1899283&group_id=176962&atid=879332

client/src/org/compiere/grid/ed/VNumber.java

@@ -408,6 +408,7 @@ public final class VNumber extends JComponent
 		{
 			log.log(Level.SEVERE, "Value=" + value, e);
 		}
+		m_text.setText(m_format.format(0));
 		if (m_displayType == DisplayType.Integer)
 			return new Integer(0);
 		return Env.ZERO;