I'm trying to use this plugin to manage a resource lock.

I configure a multiconf task by node (maybe it's vital) like this:
critical start
execute shell: sleep 5
critical end

The resource doesn't get deallocated albeit claimed so:

Started by upstream project "test" build number 16
Building remotely on autotest in workspace /home/hudson/workspace/test/node/autotest
[Exclusion] -> Allocating resource : AT
[Exclusion] -> Assigned AT
[Exclusion] -> Resource allocation complete
[autotest] $ /bin/sh -xe /tmp/hudson1930327396414066431.sh
+ sleep 5
[Exclusion] -> Releasing all the resources
Finished: SUCCESS

On the other host:

Started by upstream project "test" build number 16
Building remotely on aix_53_dev in workspace /build/hudson/workspace/test/node/aix_53_dev
[Exclusion] -> Allocating resource : AT
Waiting ressource : AT currently use by : test » autotest #16
Build was aborted
Aborted by Yury Pukhalsky
Finished: ABORTED

(Abort was mine after about two minutes.

Likewise resources are not release after the task finishes, like it's stated in the doc.

In the exclusion administration:
I don't see the state of the resource
There's nothing in the droplist, so i cannot release the resource with the button.