Package: calendarserver
Version: 3.2+dfsg-4
Severity: grave
Justification: renders package unusable

Actions performed on a calendar need to be performed twice to succeed.

Steps to reproduce:
 1. Start iCal with the calendar already configured, and a fresh install of
calendarserver with default settings.
 2. Create an event; its description is "New Event" by default.
 3. Change the name of the event to "Test"; after a few seconds, the name goes
back to "New Event"
 4. Change the name of the avant to "Test again"; now the change sticks

Changing the time of an event, its location, its note, or any other property
gives the same result.

I have captured the traffic between the client and the server (see attached
file). It can be seen that the client is sending conditional PUT requests. Half
of those requests fail, because after every successful request, the server does
not provide the client with the new ETag. So the next request fails. The client
needs to send a GET request to get the new ETag and be able to place a new PUT
request that will succeed.

-- System Information:
Debian Release: 7.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.10-0.bpo.2-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages calendarserver depends on:
ii  adduser                3.113+nmu3
ii  libc6                  2.13-38
ii  lsb-base               4.1+Debian8+deb7u1
ii  memcached              1.4.13-0.2
ii  python                 2.7.3-4
ii  python-dateutil        1.5+dfsg-0.1
ii  python-kerberos        1.1+svn4895-1+b2
ii  python-openssl         0.13-2+deb7u1
ii  python-plist           1.8-1
ii  python-pycalendar      2.0~svn188-1
ii  python-pygresql        1:4.0-3
ii  python-pysqlite2       2.6.3-3
ii  python-sqlparse        0.1.4-1
ii  python-twisted-conch   1:12.0.0-1
ii  python-twisted-core    12.0.0-1
ii  python-twisted-mail    12.0.0-1
ii  python-twisted-web     12.0.0-1
ii  python-twisted-words   12.0.0-1
ii  python-xattr           0.6.4-2
ii  python-zope.interface  3.6.1-3
ii  ssl-cert               1.0.32

Versions of packages calendarserver recommends:
ii  python-ldap  2.4.10-1
ii  python-pam   0.4.2-13

calendarserver suggests no packages.

-- Configuration Files:
/etc/default/calendarserver changed:
start_calendarserver=yes



-- no debconf information

Attachment: calendarserver-bug.pcapng.gz
Description: GNU Zip compressed data

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