case:
template with:

• discovery rule
• discovery item
• discovery graph
  Export template and then import:
  The discovery graphs are imported as templates graphs

This fix seems to do the job

on the paragraph:

foreach ($item['graph_prototypes'] as $graph)

{ --- include/classes/import/CConfigurationImport.php.orig 2012-07-29 14:01:01.132325000 +0200 +++ include/classes/import/CConfigurationImport.php 2012-07-29 13:41:38.001055000 +0200 @@ -819,6 +819,7 @@ $graphsToUpdate[] = $graph; }

else

{ + $graph['flags'] = ZBX_FLAG_DISCOVERY_CHILD; $graphsToCreate[] = $graph; }