[Bug] Components not necessarily equal

[niccokunzmann]

Describe the bug

It can be that equality depends on the order of equality.

To reproduce

>>> from icalendar import Calendar, Event
>>> calendar1 = Calendar()
>>> calendar2 = Calendar()
>>> calendar1.subcomponents = [event1, event2]
>>> calendar2.subcomponents = [event1, event1]
>>> calendar1 == calendar2
False
>>> calendar2 == calendar1
True

Expected behavior

False always

Environment

• Operating system: Linux
• Python version: 3.13
• icalendar version: 7.0.1

Additional context

• The tests for this should be in test_equality.
• Make sure we have a linear run time where possible.
• Please test this with the calendars and then also the deep copy .copy(recursive=True)