Probably incorrect one test of disputes

[xDimon]

In the test participation_with_onchain_disabling_confirmed I see two opposing votes - valid from baker and invalid from disabled validator. But although second validator named as disabled, his index is not return in result of query disabled validator (query returns empty list). It seems as mistake in test. Without that test looks like as regular scenario of dispute escalation.

[xDimon]

cc @ordian

[ordian]

Indeed, good catch! Luckily, the corrected test still passes :)