Bug 22847: Correctly displayed circ rule values for max_holds and maxissue*

Bug 22847: Correctly displayed circ rule values for max_holds and maxissue*

There are several things going wrong on the circulation rules screen. The global rule is displayed for specific libraries (even if the rule does not exist for the library), and max_holds is always blank.

I have trouble finding the root of the issue, but I will propose a patch to fix both problem.

Certainly a mismatch between bug 18887 and bug 18925.

Test plan:
0. Do not apply the patch
1. Notice the issue on the circulation rules screen
2. Apply the patch
3. Confirm that the value you set are correctly displayed (and not the propagated ones!)

Signed-off-by: Liz Rea <wizzyrea@gmail.com>
Signed-off-by: Agustin Moyano <agustinmoyano@theke.io>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>