Bug 22905: Fix update of suggestion's status if branchcode filter is 'all'

Bug 22905: Fix update of suggestion's status if branchcode filter is 'all'

Because of the "Library" filter on the left of the "Suggestions management" screen, there is something wrong happening:

1. Create a suggestion from library A, login from library B
2. Go to  Home › Acquisitions › Suggestions management
=> The suggestion does not appear - OK
3. In the filter on the left, select "all library"
=> The suggestion appears on the pending tab - KO
4. Select the suggestion and mark is as 'Accepted'
=> The suggestion still appears on the pending tab - Failure

The log says:
DBD::mysql::st execute failed: Cannot add or update a child row: a foreign key constraint fails (`koha_kohadev`.`suggestions`, CONSTRAINT `suggestions_ibfk_branchcode` FOREIGN KEY (`branchcode`) REFERENCES `branches` (`branchcode`) ON DELETE SET NULL ON UPDATE CASCADE) [for Statement "UPDATE `suggestions` SET `accepteddate` = ?, `branchcode` = ?, `currency` = ?, `manageddate` = ?, `price` = ?, `reason` = ?, `suggesteddate` = ?, `total` = ? WHERE ( `suggestionid` = ? )" with ParamValues: 0='2019-05-14T15:48:18', 1="", 2="CAD", 3='2019-05-14T15:48:18', 4="0.00", 5="", 6='2019-05-14T00:00:00', 7="0.00", 8=3] at /usr/share/perl5/DBIx/Class/Storage/DBI.pm line 1836.

Let forget what could have happened earlier in the script and do it the regular
way, from $input. Then call ModSuggestion with only what we need.

Test plan:
Confirm that the steps described before work as expected once this patch is applied

Signed-off-by: Liz Rea <wizzyrea@gmail.com>
https://bugs.koha-community.org/show_bug.cgi?id=22907

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>