Bug 18996: [16.11.x] Handle data corruption from old_issues at SIP checkin

Bug 18996: [16.11.x] Handle data corruption from old_issues at SIP checkin

As per bug 18966 AddReturn returns false with a DataCorrupted message
when the issue_id at hand already occurs in the old_issues table.
This should be handled when returning an item via SIP too. SIP should
not pretend that the checkin was successful, since this item needs
special care.

The following six different situations are handled:

[1] An attempt to checkin an invalid barcode is handled as before. The
ok flag is false; the screen message shows 'Invalid Item'.
[2] We receive a DataCorrupted message: the alert type is set to the
unused 98 code to indicate this new error condition. The ok flag
is false; the screen message shows 'Checkin failed: data problem'.
[3] The item checked in was not checked out AND the option checked_in_ok
is active. The ok flag is set to true; no screen message.
[4] The item checked in was not checked out AND the option checked_in_ok
is not active. The ok flag is not changed (normally false); the screen
message shows 'Item not checked out'.
[5] (The regular checkin) The item was checked out and AddReturn returned
true. The ok flag is true; no screen message.
[6] ("Otherwise") The item was checked out, but AddReturn returned false.
The ok flag is false; the screen message shows 'Checkin failed'.
Note: Currently this case only refers to the Wrongbranch and withdrawn
messages from AddReturn (where doreturn==0).

Note: Situation 1 and 5 are unchanged. Behavior is slightly changed for
situation 3 and 4; the option is only used when the item was not checked
out. Situation 2 and situation 6 are changed. After bug 18966 SIP
returned OK in case of data corruption (while checkin failed). In the
remaining cases under [6] SIP also returned OK while checkin failed.

Test plan:
[1] Test all six cases listed above. In order to simulate data corruption
insert the issue_id at hand in old_issues before you check in.
In cases 3 and 4 you need to toggle the option in your SIPconfig.xml and
restart the SIP server.
Case 6 can be tested by checking out at branch A, adjusting the value
of pref AllowReturnToBranch and checking in at branch B.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Colin Campbell <colin.campbell@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>