DIV-956: Fixed default zero logic error.

edivorce/apps/core/static/js/main.js

@@ -1236,4 +1236,8 @@ $('.no-collapse').on('click', function (e) {
 });
 
 // Insert default value to number fields
-$('.number-field-default-zero').val('0');
+$('.number-field-default-zero').each(function() {
+    if($(this).val() === '') {
+        $(this).val('0');
+    }
+});