Refresh reservation object from database in tests
Refresh reservation object from database in tests

This is because after a trip to the db and back, the hstore field will have
stringified all its keys. The test needs to account for that when testing
`total_price()`.

Karspexet/Karspexet,Karspexet/Karspexet,Karspexet/Karspexet,Karspexet/Karspexet,Karspexet/Karspexet