IBFT failed to start (is still running)

[amirylm]

Describe the bug

We found that multiple validators were stuck due to a deadlock in RoundTimer.

There is a race between elapsed time and killing the timer, which creates a deadlock by locking the timer's mutex.

To Reproduce

Expected behavior

What ever happens first (reset / kill / timeout) should be applied w/o locking the validator.

Screenshots

Node (please complete the following information):

• Operator Version: v0.1.10

Additional context