Add name_and_ext shortcut

lib/galaxy/tools/wrappers.py

@@ -305,6 +305,10 @@ class DatasetFilenameWrapper(ToolParameterValueWrapper):
     def file_ext(self):
         return getattr(self.unsanitized.datatype, 'file_ext_export_alias', None) or self.dataset.extension
 
+    @property
+    def name_and_ext(self):
+        return f"{self.element_identifier}.{self.file_ext}"
+
     @property
     def is_collection(self):
         return False

tools/data_export/export_remote.xml

@@ -10,8 +10,8 @@
                     '$filepath'
                 #end for
                 --names
-                #for $name in $export_type.infiles:
-                    '${name.element_identifier}.${name.file_ext}'
+                #for $infile in $export_type.infiles:
+                    '$infile.name_and_ext'
                 #end for
             #else
                 --infiles