Relevant behaviors of TaikoJiro1 which differ from TJAP2fPC/TJAP3-based sims:
* Although `#BPMCHANGE` works across branches, at the end of branched section, the BPM will snap back to the ending BPM of the first defined branch.
* Move `#BPMCHANGE` from end of `#M` section to end of `#N` section can also fix the desync issue
* `#GOGOSTART` and `#GOGOEND` works independently per branch.
* But they are only defined in the `#M` section.
Fixed by adding `#BRANCHEND` to force these commands to be not branched.
IID
c63a862baa