https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=42278

--- Comment #12 from Jan Kissig <[email protected]> ---
Created attachment 199716
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=199716&action=edit
Bug 42278: (follow-up) Guard bare-RHS TT interpolations

Several unquoted const assignments rendered to `const X = ;` when
their TT expression was empty (patron.borrowernumber without a
patron, CAN_user_circulate_manage_bookings absent, or the
AlwaysLoadCheckoutsTable syspref unset). The parser aborted the
whole script block, so has_patron, AlwaysLoadCheckoutsTable, etc.
were never defined and later scripts failed with ReferenceError.

Add TT fallbacks so the RHS is always a valid JS literal.

To test:
- /cgi-bin/koha/circ/circulation.pl with no patron → no console errors
- Search a patron, check out an item → still works

Signed-off-by: Paul Derscheid <[email protected]>
Signed-off-by: Jan Kissig <[email protected]>

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