Bug 37247: Fix display of "closed"

Bug 37247: Fix display of "closed"

The subscription was not shown as closed after we closed it.
This is because "closed" is not passed to the template.
It seems more reliable to rely on the subscription object (that is passed to both
serials/serials-collection.tt and serials/subscription-detail.tt, the
others are not showing the Reopen/Close buttons)

Also fetch the subscription object after and reopen/close it to display
accurate values.

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 3cf17aa16f70e978f654345274972b65ca7b6164)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>