minor fix for nested templates.
minor fix for nested templates.

mbmcgarry/cyclus,rwcarlsen/cyclus,gidden/cyclus,rwcarlsen/cyclus,gidden/cyclus,gidden/cyclus,mbmcgarry/cyclus,rwcarlsen/cyclus,rwcarlsen/cyclus,hodger/cyclus,Baaaaam/cyclus,Baaaaam/cyclus,hodger/cyclus,Baaaaam/cyclus,hodger/cyclus,hodger/cyclus,hodger/cyclus,mbmcgarry/cyclus,gidden/cyclus,mbmcgarry/cyclus