Created attachment 192443 [details] A large whole-paragraph bookmark, and a multiline cross-reference field showing its text Create a multiline paragraph. Put all of it into a bookmark. In a new paragraph, insert a cross-reference field, referring to that bookmark, and showing its text. Make the paragraph with the cross-reference field alignment justified. Enable display of formatting marks. Since commit 21473f46fda5f1c7f220493667a96fff7c78a7b3 (sw: fix crashtesting assert on forum-mso-en-13115.docx, 2023-05-25), all lines after the first start with a space. The attachment can be used to see it.
this sounds a lot like bug 159101
(In reply to Michael Stahl (allotropia) from comment #1) Thank you! *** This bug has been marked as a duplicate of bug 159101 ***