If a score callback corresponding to /execute store (result|success) score <targets> <objective> contains targets with 41 or more characters, it throws java.lang.IllegalArgumentException while executing the chained callbacks.
This causes the remaining callbacks not to be executed.
→ An unexpected error occurred trying to execute that command (The player name '_________________________________________' is too long!)
→ a has 1 [mc-182362], the callback corresponding to /execute store success score a mc-182362 is successfully executed.
→ Can't get value of mc-182362 for b; none is set, the callback corresponding to /execute store success score b mc-182362 is not executed.
Scoreboard#getOrCreatePlayerScore throws IllegalArgumentException iff target.length() > 40 at runtime. This breaks the callback chain created by CALLBACK_CHAINER.