I have created a zk-ref and added two watchers. One is added inline at created of the ref, the other is added subsequently using add-watch.

I then run tests by manually (from the REPL) changing the zk-ref from a remote machine.

Occasionally, I notice both watchers are called with the PREVIOUS state in the new (last) argument. Immediately after this problem, I verify that the distributed ref has the correct value on the same machine where the watcher was invoked incorrectly.

set-to/watcher-called-with/zk-ref-has
1/1/1
2/2/2
3/2/3