Bug 21242: If not searching for patron, move to log viewer

Bug 21242: If not searching for patron, move to log viewer

To test:
1 - Bring up a patron
2 - Click 'Modification log'
3 - Note you get borrower info
4 - Move the object field into info field
5 - Submit
6 - You are now on the 'Log viewer' page with admin options, not
borrower circ options

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
(cherry picked from commit 411e78864918c909feffeadb341db37cea0a4393)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>