Pre-prepare message pipeline error (unjustified)

[amirylm]

There are errors in pre-prepare message pipeline: msg pipeline error {"error": "Unjustified pre-prepare: no change round quorum"}

https://github.com/bloxapp/ssv/blob/64b938fc15b5d3d3573d9180bf17ffdde114092d/ibft/pre_prepare.go#L49

[alonmuroch]

@amir-blox Is this an issue?

[nivBlox]

@alonmuroch the error itself is not an issue - still investigate if the cause is ok or not