When a timeout occurs when a node is in CLEANWAIT state, the conductor
puts it into the CLEANFAIL state. However, it tries to do that twice, and
our state machine doesn't support moving from a CLEANFAIL state to another
state via the 'fail' verb/event.
The code was changed so that it doesn't try to move it to CLEANFAIL twice,
and a check is put to prevent the node from being 'failed' frome a CLEANFAIL
state.
Change-Id: Ieeb77dd28a5d3053588c46fe2a700b5e6ceabbd7
Story: 2004299
Task: 27855
78ae60f11e