[BUG] Linking a Adventure to Collection removes Visits

[JesperDramsch]

Describe the bug
When you link an existing adventure to a collection, it removes the visits on this adventure.

To Reproduce
Steps to reproduce the behavior:

1. Create an adventure with visits
2. Link to Collection
3. Wonder why visits are gone

Expected behavior
I expect a linked adventure to keep all visits.

(Maybe I misunderstand how collections work, but for example if I add the "Big Ben historical site" adventure I want to be able to visit it multiple times. Probably fits with #336 )

[seanmorley15]

Yes this is a bug, thanks for discovering it. I was just able to diagnose and fix it in the development branch. Now when adventures are linked and unlinked from collections, all of the logged visits will remain. Thanks for finding this, it will be released with the next PR to main 😃

[JesperDramsch]

Amazing thanks @seanmorley15 !