[BUG] Edge case when adding multiple modules not in the academic calendar - user options only apply to latest module

[frizensami]

Describe the bug
When adding multiple modules not in the academic calendar using the NUSMods link import option - user options only apply to the last module in the list.

To Reproduce
Steps to reproduce the behavior:

1. Add https://nusmods.com/timetable/sem-1/share?SG4206=REC:08A,TUT:09D,LEC:1&SG5101=LEC:1,TUT:12
2. Click on "Skip" -- only one of the mods is skipped

Expected behavior
We expect both of the modules to be skipped.