When entering a new bug, the search at Step 2 looking for text in both Summary and Description fields with the search key of `autofs' does not find the autofs $prog bug resulting a duplicate bug report. It finds bugs 18354 and 24504 but misses 29169, 29668, 29690, 30982 and 32079.
Current version of bugzilla seems to work much better. It (currently) does not find the extra bug numbers I listed because they are closed as duplicates. Not sure if that was the problem before - either way close this one off.