messy code when split StringType, how to solve it?

convert String to ascii，then split it, but get messy code when converting ascii to string back
Has it been seen before?
how to solve it ? or maybe i got it wrong?
thanks


No source file, test, or entry point is identified in the issue. Start by reproducing the reported StringType conversion with the attached example, then trace the relevant conversion path and confirm the expected encoding before adding a regression test. Done means the split-and-convert flow no longer produces the reported garbled text.

Written by the indexing model from the issue text.