In the Bullets and Numbering dialog, under the Options tab, spaces and punctuation saved in the "After" box move to the the "Before" box when the document is saved in MSWord format (either 1997-2003 .doc or .docx) and reopened.
Thus, for example:
A numbered heading that should read, "A. The Cow Jumps Over the Moon.", becomes, instead, ".A The Cow Jumps Over the Moon.", or "(ii) Defendant Is Entitled to Summary Judgment." becomes "()ii Defendant Is Entitled to Summary Judgment."
Hi, thanks for submitting a bug report. I am not able to reproduce this using LibreOffice 220.127.116.11 or LibreOffice 18.104.22.168alpha0+. I will close this as Work for Me, but if this is still a bug for you, you can REOPEN the bug.
Platform: Windows 8 x64
Version: 22.214.171.124.alpha0+; 126.96.36.199