I have had the same issue with a merge with versions 1.35, 1.36 and a recent trunk build. I finally managed to merge my branches with version 1.34 of Fossil. So I guess the problem might stem from the `merge-renames` branch (http://fossil-scm.org/index.html/timeline?t=merge-renames), that happened in May 2016.
What's odd is that my merge did not contain any renames. However before I had the SQLITE_CONSTRAINT error, the merge tried to delete a file that existed in both branches. I guess I can offer access to the afflicted repository if someone wants to peek into it. Thanks. Thomas. _______________________________________________ fossil-users mailing list fossil-users@lists.fossil-scm.org http://lists.fossil-scm.org:8080/cgi-bin/mailman/listinfo/fossil-users