Investigate report of TI not updating as expected when block reward fee is partially burned

[liamaharon]

See polkadot-fellows/runtimes#270 (comment)

Should probably just finally add try-state for TI so we don't need to wonder about this, looping over all accs is not as expensive as we originally through.

Relevant: script from @ggwpez that checks TI and will bisect the block it deviated https://github.com/ggwpez/substrate-scripts/blob/ae80c5cb115a0b572d3e8de9be780e1e7b4ceb8b/check-ti-complete.py#L14

Possibly also relevant, which hasn't made it into fellowship release yet: #3865

[ggwpez]

Backporting here for the fellowship runtimes repo: #4398