[Bug 37073] can't delete calendar

[Yann]

Public bug reported:
https://launchpad.net/malone/bugs/37073

Affects: evolution (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
I created 4 local calendars on evolution but now I can't delete the last
2.

I also can't use the last two calendar in events, each time I try to
select one of these two, the second calendar is used instead.