Adding a "forget()" directive next the reset does indeed prevent the error.
I tried applying your patch, but I get: patch -b < trac_10855_ensure_that_reset_forgets.patch patching file reset.pyx Hunk #1 FAILED at 6. Hunk #2 FAILED at 25. Hunk #3 FAILED at 38. 3 out of 3 hunks FAILED -- saving rejects to file reset.pyx.rej I thought it might be because I am using a older Sage version, so I grabbed the latest reset.pyx from the mercurial repository, but the same errors persist during patch. Any idea? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org