block num of irreversible signal is not align with get_info api

[crazybits]

as subject, i tried the listen LIB height from the irreversible signal and the get_info api, and found the LIB height is different, the LIB height in get_info is at around 330 blocks, but the LIB height in irreversible signal emit from underlying framework is 249 blocks, which one is reliable? and why there is difference?

[arhag]

The larger LIB height is the more accurate one. This is due to the same problem as the one described in #6409 (comment). It will be resolved when the changes of #6624 are included in a tagged release.

[jgiszczak]

Closing in favor of #6409.