of-flow: flow after update(with del and add) not present on the switch

odl cto:
org.opendaylight.controller.version = 0.1
org.opendaylight.controller.build.scm.version = 0ef97b34b82e9987ada3ad2a318fd03731385aa4
org.opendaylight.controller.build.user = jenkins-controller
org.opendaylight.controller.build.workspace = **********
org.opendaylight.controller.build.timestamp = 1410988075535
org.opendaylight.controller.build.machine = **********

env: mininet 2.1.0 + ovs 2.0.0

flow: integration.git/test/csit/variables/xmls/f2.xml

steps to reproduce:
1) add the flow with url PUT .........tablele/2/flow/125 with content of f2.xml file
2) check the flow is present on the switch
3) update the flow: same url, but change priority from 2 to 3.

We expect the "old" flow to be removed and a "new" one to be added.
After step 3 there is not flow on the switch.