types: is a Proposal with Height == 0 valid? #2210
Description
A Proposal with height 0 is considered valid, see:
Lines 53 to 55 in 9613e7a
The associated test unit only tests height -1, see:
cometbft/types/proposal_test.go
Line 136 in 9613e7a
But as @sergio-mena pointed out in #2206 (comment):
I checked the validation function and it's true it allows for height 0, but is it a bug? I searched around and never saw the height being set to 0, neither in production nor in tests (maybe I missed it)