Description
IBM reported that their DFDL implementation was affected by what seems to be a bug introduced into the ICU library. Their description from the DFDL WG Agenda for 2021-06-10 is in this screenshot (apologies, the PDF doesn't allow select/cut/paste):
Links:
https://unicode-org.atlassian.net/browse/ICU-20425
https://github.com/unicode-org/icu/pull/1726